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"$ac_site_file" \ || { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;} as_fn_error $? "failed to load site script $ac_site_file See \`config.log' for more details" "$LINENO" 5; } fi done if test -r "$cache_file"; then # Some versions of bash will fail to source /dev/null (special files # actually), so we avoid doing that. DJGPP emulates it as a regular file. if test /dev/null != "$cache_file" && test -f "$cache_file"; then { printf "%s\n" "$as_me:${as_lineno-$LINENO}: loading cache $cache_file" >&5 printf "%s\n" "$as_me: loading cache $cache_file" >&6;} case $cache_file in [\\/]* | ?:[\\/]* ) . "$cache_file";; *) . "./$cache_file";; esac fi else { printf "%s\n" "$as_me:${as_lineno-$LINENO}: creating cache $cache_file" >&5 printf "%s\n" "$as_me: creating cache $cache_file" >&6;} >$cache_file fi # Test code for whether the C compiler supports C89 (global declarations) ac_c_conftest_c89_globals=' /* Does the compiler advertise C89 conformance? Do not test the value of __STDC__, because some compilers set it to 0 while being otherwise adequately conformant. */ #if !defined __STDC__ # error "Compiler does not advertise C89 conformance" #endif #include #include struct stat; /* Most of the following tests are stolen from RCS 5.7 src/conf.sh. */ struct buf { int x; }; struct buf * (*rcsopen) (struct buf *, struct stat *, int); static char *e (p, i) char **p; int i; { return p[i]; } static char *f (char * (*g) (char **, int), char **p, ...) { char *s; va_list v; va_start (v,p); s = g (p, va_arg (v,int)); va_end (v); return s; } /* OSF 4.0 Compaq cc is some sort of almost-ANSI by default. It has function prototypes and stuff, but not \xHH hex character constants. These do not provoke an error unfortunately, instead are silently treated as an "x". The following induces an error, until -std is added to get proper ANSI mode. Curiously \x00 != x always comes out true, for an array size at least. It is necessary to write \x00 == 0 to get something that is true only with -std. */ int osf4_cc_array ['\''\x00'\'' == 0 ? 1 : -1]; /* IBM C 6 for AIX is almost-ANSI by default, but it replaces macro parameters inside strings and character constants. */ #define FOO(x) '\''x'\'' int xlc6_cc_array[FOO(a) == '\''x'\'' ? 1 : -1]; int test (int i, double x); struct s1 {int (*f) (int a);}; struct s2 {int (*f) (double a);}; int pairnames (int, char **, int *(*)(struct buf *, struct stat *, int), int, int);' # Test code for whether the C compiler supports C89 (body of main). ac_c_conftest_c89_main=' ok |= (argc == 0 || f (e, argv, 0) != argv[0] || f (e, argv, 1) != argv[1]); ' # Test code for whether the C compiler supports C99 (global declarations) ac_c_conftest_c99_globals=' // Does the compiler advertise C99 conformance? #if !defined __STDC_VERSION__ || __STDC_VERSION__ < 199901L # error "Compiler does not advertise C99 conformance" #endif #include extern int puts (const char *); extern int printf (const char *, ...); extern int dprintf (int, const char *, ...); extern void *malloc (size_t); // Check varargs macros. These examples are taken from C99 6.10.3.5. // dprintf is used instead of fprintf to avoid needing to declare // FILE and stderr. #define debug(...) dprintf (2, __VA_ARGS__) #define showlist(...) puts (#__VA_ARGS__) #define report(test,...) ((test) ? puts (#test) : printf (__VA_ARGS__)) static void test_varargs_macros (void) { int x = 1234; int y = 5678; debug ("Flag"); debug ("X = %d\n", x); showlist (The first, second, and third items.); report (x>y, "x is %d but y is %d", x, y); } // Check long long types. #define BIG64 18446744073709551615ull #define BIG32 4294967295ul #define BIG_OK (BIG64 / BIG32 == 4294967297ull && BIG64 % BIG32 == 0) #if !BIG_OK #error "your preprocessor is broken" #endif #if BIG_OK #else #error "your preprocessor is broken" #endif static long long int bignum = -9223372036854775807LL; static unsigned long long int ubignum = BIG64; struct incomplete_array { int datasize; double data[]; }; struct named_init { int number; const wchar_t *name; double average; }; typedef const char *ccp; static inline int test_restrict (ccp restrict text) { // See if C++-style comments work. // Iterate through items via the restricted pointer. // Also check for declarations in for loops. for (unsigned int i = 0; *(text+i) != '\''\0'\''; ++i) continue; return 0; } // Check varargs and va_copy. static bool test_varargs (const char *format, ...) { va_list args; va_start (args, format); va_list args_copy; va_copy (args_copy, args); const char *str = ""; int number = 0; float fnumber = 0; while (*format) { switch (*format++) { case '\''s'\'': // string str = va_arg (args_copy, const char *); break; case '\''d'\'': // int number = va_arg (args_copy, int); break; case '\''f'\'': // float fnumber = va_arg (args_copy, double); break; default: break; } } va_end (args_copy); va_end (args); return *str && number && fnumber; } ' # Test code for whether the C compiler supports C99 (body of main). ac_c_conftest_c99_main=' // Check bool. _Bool success = false; success |= (argc != 0); // Check restrict. if (test_restrict ("String literal") == 0) success = true; char *restrict newvar = "Another string"; // Check varargs. success &= test_varargs ("s, d'\'' f .", "string", 65, 34.234); test_varargs_macros (); // Check flexible array members. struct incomplete_array *ia = malloc (sizeof (struct incomplete_array) + (sizeof (double) * 10)); ia->datasize = 10; for (int i = 0; i < ia->datasize; ++i) ia->data[i] = i * 1.234; // Check named initializers. struct named_init ni = { .number = 34, .name = L"Test wide string", .average = 543.34343, }; ni.number = 58; int dynamic_array[ni.number]; dynamic_array[0] = argv[0][0]; dynamic_array[ni.number - 1] = 543; // work around unused variable warnings ok |= (!success || bignum == 0LL || ubignum == 0uLL || newvar[0] == '\''x'\'' || dynamic_array[ni.number - 1] != 543); ' # Test code for whether the C compiler supports C11 (global declarations) ac_c_conftest_c11_globals=' // Does the compiler advertise C11 conformance? #if !defined __STDC_VERSION__ || __STDC_VERSION__ < 201112L # error "Compiler does not advertise C11 conformance" #endif // Check _Alignas. char _Alignas (double) aligned_as_double; char _Alignas (0) no_special_alignment; extern char aligned_as_int; char _Alignas (0) _Alignas (int) aligned_as_int; // Check _Alignof. enum { int_alignment = _Alignof (int), int_array_alignment = _Alignof (int[100]), char_alignment = _Alignof (char) }; _Static_assert (0 < -_Alignof (int), "_Alignof is signed"); // Check _Noreturn. int _Noreturn does_not_return (void) { for (;;) continue; } // Check _Static_assert. struct test_static_assert { int x; _Static_assert (sizeof (int) <= sizeof (long int), "_Static_assert does not work in struct"); long int y; }; // Check UTF-8 literals. #define u8 syntax error! char const utf8_literal[] = u8"happens to be ASCII" "another string"; // Check duplicate typedefs. typedef long *long_ptr; typedef long int *long_ptr; typedef long_ptr long_ptr; // Anonymous structures and unions -- taken from C11 6.7.2.1 Example 1. struct anonymous { union { struct { int i; int j; }; struct { int k; long int l; } w; }; int m; } v1; ' # Test code for whether the C compiler supports C11 (body of main). ac_c_conftest_c11_main=' _Static_assert ((offsetof (struct anonymous, i) == offsetof (struct anonymous, w.k)), "Anonymous union alignment botch"); v1.i = 2; v1.w.k = 5; ok |= v1.i != 5; ' # Test code for whether the C compiler supports C11 (complete). ac_c_conftest_c11_program="${ac_c_conftest_c89_globals} ${ac_c_conftest_c99_globals} ${ac_c_conftest_c11_globals} int main (int argc, char **argv) { int ok = 0; ${ac_c_conftest_c89_main} ${ac_c_conftest_c99_main} ${ac_c_conftest_c11_main} return ok; } " # Test code for whether the C compiler supports C99 (complete). ac_c_conftest_c99_program="${ac_c_conftest_c89_globals} ${ac_c_conftest_c99_globals} int main (int argc, char **argv) { int ok = 0; ${ac_c_conftest_c89_main} ${ac_c_conftest_c99_main} return ok; } " # Test code for whether the C compiler supports C89 (complete). ac_c_conftest_c89_program="${ac_c_conftest_c89_globals} int main (int argc, char **argv) { int ok = 0; ${ac_c_conftest_c89_main} return ok; } " as_fn_append ac_header_c_list " stdio.h stdio_h HAVE_STDIO_H" as_fn_append ac_header_c_list " stdlib.h stdlib_h HAVE_STDLIB_H" as_fn_append ac_header_c_list " string.h string_h HAVE_STRING_H" as_fn_append ac_header_c_list " inttypes.h inttypes_h HAVE_INTTYPES_H" as_fn_append ac_header_c_list " stdint.h stdint_h HAVE_STDINT_H" as_fn_append ac_header_c_list " strings.h strings_h HAVE_STRINGS_H" as_fn_append ac_header_c_list " sys/stat.h sys_stat_h HAVE_SYS_STAT_H" as_fn_append ac_header_c_list " sys/types.h sys_types_h HAVE_SYS_TYPES_H" as_fn_append ac_header_c_list " unistd.h unistd_h HAVE_UNISTD_H" # Auxiliary files required by this configure script. ac_aux_files="config.guess config.sub compile missing install-sh" # Locations in which to look for auxiliary files. ac_aux_dir_candidates="${srcdir}${PATH_SEPARATOR}${srcdir}/..${PATH_SEPARATOR}${srcdir}/../.." # Search for a directory containing all of the required auxiliary files, # $ac_aux_files, from the $PATH-style list $ac_aux_dir_candidates. # If we don't find one directory that contains all the files we need, # we report the set of missing files from the *first* directory in # $ac_aux_dir_candidates and give up. ac_missing_aux_files="" ac_first_candidate=: printf "%s\n" "$as_me:${as_lineno-$LINENO}: looking for aux files: $ac_aux_files" >&5 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR as_found=false for as_dir in $ac_aux_dir_candidates do IFS=$as_save_IFS case $as_dir in #((( '') as_dir=./ ;; */) ;; *) as_dir=$as_dir/ ;; esac as_found=: printf "%s\n" "$as_me:${as_lineno-$LINENO}: trying $as_dir" >&5 ac_aux_dir_found=yes ac_install_sh= for ac_aux in $ac_aux_files do # As a special case, if "install-sh" is required, that requirement # can be satisfied by any of "install-sh", "install.sh", or "shtool", # and $ac_install_sh is set appropriately for whichever one is found. if test x"$ac_aux" = x"install-sh" then if test -f "${as_dir}install-sh"; then printf "%s\n" "$as_me:${as_lineno-$LINENO}: ${as_dir}install-sh found" >&5 ac_install_sh="${as_dir}install-sh -c" elif test -f "${as_dir}install.sh"; then printf "%s\n" "$as_me:${as_lineno-$LINENO}: ${as_dir}install.sh found" >&5 ac_install_sh="${as_dir}install.sh -c" elif test -f "${as_dir}shtool"; then printf "%s\n" "$as_me:${as_lineno-$LINENO}: ${as_dir}shtool found" >&5 ac_install_sh="${as_dir}shtool install -c" else ac_aux_dir_found=no if $ac_first_candidate; then ac_missing_aux_files="${ac_missing_aux_files} install-sh" else break fi fi else if test -f "${as_dir}${ac_aux}"; then printf "%s\n" "$as_me:${as_lineno-$LINENO}: ${as_dir}${ac_aux} found" >&5 else ac_aux_dir_found=no if $ac_first_candidate; then ac_missing_aux_files="${ac_missing_aux_files} ${ac_aux}" else break fi fi fi done if test "$ac_aux_dir_found" = yes; then ac_aux_dir="$as_dir" break fi ac_first_candidate=false as_found=false done IFS=$as_save_IFS if $as_found then : else $as_nop as_fn_error $? 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We can't simply define LARGE_OFF_T to be 9223372036854775807, since some C++ compilers masquerading as C compilers incorrectly reject 9223372036854775807. */ #define LARGE_OFF_T (((off_t) 1 << 31 << 31) - 1 + ((off_t) 1 << 31 << 31)) int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721 && LARGE_OFF_T % 2147483647 == 1) ? 1 : -1]; int main (void) { ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO" then : break fi rm -f core conftest.err conftest.$ac_objext conftest.beam CC="$CC -n32" if ac_fn_c_try_compile "$LINENO" then : ac_cv_sys_largefile_CC=' -n32'; break fi rm -f core conftest.err conftest.$ac_objext conftest.beam break done CC=$ac_save_CC rm -f conftest.$ac_ext fi fi { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sys_largefile_CC" >&5 printf "%s\n" "$ac_cv_sys_largefile_CC" >&6; } if test "$ac_cv_sys_largefile_CC" != no; then CC=$CC$ac_cv_sys_largefile_CC fi { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for _FILE_OFFSET_BITS value needed for large files" >&5 printf %s "checking for _FILE_OFFSET_BITS value needed for large files... " >&6; } if test ${ac_cv_sys_file_offset_bits+y} then : printf %s "(cached) " >&6 else $as_nop while :; do cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #include /* Check that off_t can represent 2**63 - 1 correctly. We can't simply define LARGE_OFF_T to be 9223372036854775807, since some C++ compilers masquerading as C compilers incorrectly reject 9223372036854775807. */ #define LARGE_OFF_T (((off_t) 1 << 31 << 31) - 1 + ((off_t) 1 << 31 << 31)) int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721 && LARGE_OFF_T % 2147483647 == 1) ? 1 : -1]; int main (void) { ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO" then : ac_cv_sys_file_offset_bits=no; break fi rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #define _FILE_OFFSET_BITS 64 #include /* Check that off_t can represent 2**63 - 1 correctly. 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" >&6; } if test ${ac_cv_sys_large_files+y} then : printf %s "(cached) " >&6 else $as_nop while :; do cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #include /* Check that off_t can represent 2**63 - 1 correctly. We can't simply define LARGE_OFF_T to be 9223372036854775807, since some C++ compilers masquerading as C compilers incorrectly reject 9223372036854775807. */ #define LARGE_OFF_T (((off_t) 1 << 31 << 31) - 1 + ((off_t) 1 << 31 << 31)) int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721 && LARGE_OFF_T % 2147483647 == 1) ? 1 : -1]; int main (void) { ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO" then : ac_cv_sys_large_files=no; break fi rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #define _LARGE_FILES 1 #include /* Check that off_t can represent 2**63 - 1 correctly. We can't simply define LARGE_OFF_T to be 9223372036854775807, since some C++ compilers masquerading as C compilers incorrectly reject 9223372036854775807. */ #define LARGE_OFF_T (((off_t) 1 << 31 << 31) - 1 + ((off_t) 1 << 31 << 31)) int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721 && LARGE_OFF_T % 2147483647 == 1) ? 1 : -1]; int main (void) { ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO" then : ac_cv_sys_large_files=1; break fi rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ac_cv_sys_large_files=unknown break done fi { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sys_large_files" >&5 printf "%s\n" "$ac_cv_sys_large_files" >&6; } case $ac_cv_sys_large_files in #( no | unknown) ;; *) printf "%s\n" "#define _LARGE_FILES $ac_cv_sys_large_files" >>confdefs.h ;; esac rm -rf conftest* fi fi if test "x$ac_cv_env_PKG_CONFIG_set" != "xset"; then if test -n "$ac_tool_prefix"; then # Extract the first word of "${ac_tool_prefix}pkg-config", so it can be a program name with args. set dummy ${ac_tool_prefix}pkg-config; ac_word=$2 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 printf %s "checking for $ac_word... " >&6; } if test ${ac_cv_path_PKG_CONFIG+y} then : printf %s "(cached) " >&6 else $as_nop case $PKG_CONFIG in [\\/]* | ?:[\\/]*) ac_cv_path_PKG_CONFIG="$PKG_CONFIG" # Let the user override the test with a path. ;; *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS case $as_dir in #((( '') as_dir=./ ;; */) ;; *) as_dir=$as_dir/ ;; esac for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then ac_cv_path_PKG_CONFIG="$as_dir$ac_word$ac_exec_ext" printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS ;; esac fi PKG_CONFIG=$ac_cv_path_PKG_CONFIG if test -n "$PKG_CONFIG"; then { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $PKG_CONFIG" >&5 printf "%s\n" "$PKG_CONFIG" >&6; } else { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5 printf "%s\n" "no" >&6; } fi fi if test -z "$ac_cv_path_PKG_CONFIG"; then ac_pt_PKG_CONFIG=$PKG_CONFIG # Extract the first word of "pkg-config", so it can be a program name with args. set dummy pkg-config; ac_word=$2 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 printf %s "checking for $ac_word... " >&6; } if test ${ac_cv_path_ac_pt_PKG_CONFIG+y} then : printf %s "(cached) " >&6 else $as_nop case $ac_pt_PKG_CONFIG in [\\/]* | ?:[\\/]*) ac_cv_path_ac_pt_PKG_CONFIG="$ac_pt_PKG_CONFIG" # Let the user override the test with a path. ;; *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS case $as_dir in #((( '') as_dir=./ ;; */) ;; *) as_dir=$as_dir/ ;; esac for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then ac_cv_path_ac_pt_PKG_CONFIG="$as_dir$ac_word$ac_exec_ext" printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS ;; esac fi ac_pt_PKG_CONFIG=$ac_cv_path_ac_pt_PKG_CONFIG if test -n "$ac_pt_PKG_CONFIG"; then { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_pt_PKG_CONFIG" >&5 printf "%s\n" "$ac_pt_PKG_CONFIG" >&6; } else { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5 printf "%s\n" "no" >&6; } fi if test "x$ac_pt_PKG_CONFIG" = x; then PKG_CONFIG="" else case $cross_compiling:$ac_tool_warned in yes:) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} ac_tool_warned=yes ;; esac PKG_CONFIG=$ac_pt_PKG_CONFIG fi else PKG_CONFIG="$ac_cv_path_PKG_CONFIG" fi fi if test -n "$PKG_CONFIG"; then _pkg_min_version=0.9.0 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking pkg-config is at least version $_pkg_min_version" >&5 printf %s "checking pkg-config is at least version $_pkg_min_version... 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Now check whether nonexistent headers # can be detected and how. cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #include _ACEOF if ac_fn_c_try_cpp "$LINENO" then : # Broken: success on invalid input. continue else $as_nop # Passes both tests. ac_preproc_ok=: break fi rm -f conftest.err conftest.i conftest.$ac_ext done # Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped. rm -f conftest.i conftest.err conftest.$ac_ext if $ac_preproc_ok then : break fi done ac_cv_prog_CPP=$CPP fi CPP=$ac_cv_prog_CPP else ac_cv_prog_CPP=$CPP fi { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $CPP" >&5 printf "%s\n" "$CPP" >&6; } ac_preproc_ok=false for ac_c_preproc_warn_flag in '' yes do # Use a header file that comes with gcc, so configuring glibc # with a fresh cross-compiler works. # On the NeXT, cc -E runs the code through the compiler's parser, # not just through cpp. "Syntax error" is here to catch this case. cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #include Syntax error _ACEOF if ac_fn_c_try_cpp "$LINENO" then : else $as_nop # Broken: fails on valid input. continue fi rm -f conftest.err conftest.i conftest.$ac_ext # OK, works on sane cases. Now check whether nonexistent headers # can be detected and how. cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #include _ACEOF if ac_fn_c_try_cpp "$LINENO" then : # Broken: success on invalid input. continue else $as_nop # Passes both tests. ac_preproc_ok=: break fi rm -f conftest.err conftest.i conftest.$ac_ext done # Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped. rm -f conftest.i conftest.err conftest.$ac_ext if $ac_preproc_ok then : else $as_nop { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;} as_fn_error $? "C preprocessor \"$CPP\" fails sanity check See \`config.log' for more details" "$LINENO" 5; } fi ac_ext=c ac_cpp='$CPP $CPPFLAGS' ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' ac_compiler_gnu=$ac_cv_c_compiler_gnu { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether compiler handles -Wall" >&5 printf %s "checking whether compiler handles -Wall... 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" >&6; } if test ${ul_cv_warn__Wextra+y} then : printf %s "(cached) " >&6 else $as_nop # store AC_LANG_WERROR status, then turn it on save_ac_c_werror_flag="${ac_c_werror_flag}" ac_c_werror_flag=yes ul_save_CPPFLAGS="$CPPFLAGS" CPPFLAGS="-Werror ${CPPFLAGS} -Wextra" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main (void) { ; return 0; } _ACEOF if ac_fn_c_try_cpp "$LINENO" then : ul_cv_warn__Wextra=yes else $as_nop ul_cv_warn__Wextra=no fi rm -f conftest.err conftest.i conftest.$ac_ext # restore AC_LANG_WERROR ac_c_werror_flag="${save_ac_c_werror_flag}" CPPFLAGS="$ul_save_CPPFLAGS" fi { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ul_cv_warn__Wextra" >&5 printf "%s\n" "$ul_cv_warn__Wextra" >&6; } if test "x$ul_cv_warn__Wextra" = xyes then : as_fn_append WARN_CFLAGS " -Wextra" fi { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether compiler handles -Wunused" >&5 printf %s "checking whether compiler handles -Wunused... " >&6; } if test ${ul_cv_warn__Wunused+y} then : printf %s "(cached) " >&6 else $as_nop # store AC_LANG_WERROR status, then turn it on save_ac_c_werror_flag="${ac_c_werror_flag}" ac_c_werror_flag=yes ul_save_CPPFLAGS="$CPPFLAGS" CPPFLAGS="-Werror ${CPPFLAGS} -Wunused" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main (void) { ; return 0; } _ACEOF if ac_fn_c_try_cpp "$LINENO" then : ul_cv_warn__Wunused=yes else $as_nop ul_cv_warn__Wunused=no fi rm -f conftest.err conftest.i conftest.$ac_ext # restore AC_LANG_WERROR ac_c_werror_flag="${save_ac_c_werror_flag}" CPPFLAGS="$ul_save_CPPFLAGS" fi { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ul_cv_warn__Wunused" >&5 printf "%s\n" "$ul_cv_warn__Wunused" >&6; } if test "x$ul_cv_warn__Wunused" = xyes then : as_fn_append WARN_CFLAGS " -Wunused" fi { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether compiler handles -Wmissing-prototypes" >&5 printf %s "checking whether compiler handles -Wmissing-prototypes... " >&6; } if test ${ul_cv_warn__Wmissing_prototypes+y} then : printf %s "(cached) " >&6 else $as_nop # store AC_LANG_WERROR status, then turn it on save_ac_c_werror_flag="${ac_c_werror_flag}" ac_c_werror_flag=yes ul_save_CPPFLAGS="$CPPFLAGS" CPPFLAGS="-Werror ${CPPFLAGS} -Wmissing-prototypes" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main (void) { ; return 0; } _ACEOF if ac_fn_c_try_cpp "$LINENO" then : ul_cv_warn__Wmissing_prototypes=yes else $as_nop ul_cv_warn__Wmissing_prototypes=no fi rm -f conftest.err conftest.i conftest.$ac_ext # restore AC_LANG_WERROR ac_c_werror_flag="${save_ac_c_werror_flag}" CPPFLAGS="$ul_save_CPPFLAGS" fi { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ul_cv_warn__Wmissing_prototypes" >&5 printf "%s\n" "$ul_cv_warn__Wmissing_prototypes" >&6; } if test "x$ul_cv_warn__Wmissing_prototypes" = xyes then : as_fn_append WARN_CFLAGS " -Wmissing-prototypes" fi { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether compiler handles -Wmissing-declarations" >&5 printf %s "checking whether compiler handles -Wmissing-declarations... " >&6; } if test ${ul_cv_warn__Wmissing_declarations+y} then : printf %s "(cached) " >&6 else $as_nop # store AC_LANG_WERROR status, then turn it on save_ac_c_werror_flag="${ac_c_werror_flag}" ac_c_werror_flag=yes ul_save_CPPFLAGS="$CPPFLAGS" CPPFLAGS="-Werror ${CPPFLAGS} -Wmissing-declarations" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main (void) { ; return 0; } _ACEOF if ac_fn_c_try_cpp "$LINENO" then : ul_cv_warn__Wmissing_declarations=yes else $as_nop ul_cv_warn__Wmissing_declarations=no fi rm -f conftest.err conftest.i conftest.$ac_ext # restore AC_LANG_WERROR ac_c_werror_flag="${save_ac_c_werror_flag}" CPPFLAGS="$ul_save_CPPFLAGS" fi { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ul_cv_warn__Wmissing_declarations" >&5 printf "%s\n" "$ul_cv_warn__Wmissing_declarations" >&6; } if test "x$ul_cv_warn__Wmissing_declarations" = xyes then : as_fn_append WARN_CFLAGS " -Wmissing-declarations" fi { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether compiler handles -Wwrite-strings" >&5 printf %s "checking whether compiler handles -Wwrite-strings... " >&6; } if test ${ul_cv_warn__Wwrite_strings+y} then : printf %s "(cached) " >&6 else $as_nop # store AC_LANG_WERROR status, then turn it on save_ac_c_werror_flag="${ac_c_werror_flag}" ac_c_werror_flag=yes ul_save_CPPFLAGS="$CPPFLAGS" CPPFLAGS="-Werror ${CPPFLAGS} -Wwrite-strings" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main (void) { ; return 0; } _ACEOF if ac_fn_c_try_cpp "$LINENO" then : ul_cv_warn__Wwrite_strings=yes else $as_nop ul_cv_warn__Wwrite_strings=no fi rm -f conftest.err conftest.i conftest.$ac_ext # restore AC_LANG_WERROR ac_c_werror_flag="${save_ac_c_werror_flag}" CPPFLAGS="$ul_save_CPPFLAGS" fi { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ul_cv_warn__Wwrite_strings" >&5 printf "%s\n" "$ul_cv_warn__Wwrite_strings" >&6; } if test "x$ul_cv_warn__Wwrite_strings" = xyes then : as_fn_append WARN_CFLAGS " -Wwrite-strings" fi { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether compiler handles -Wjump-misses-init" >&5 printf %s "checking whether compiler handles -Wjump-misses-init... " >&6; } if test ${ul_cv_warn__Wjump_misses_init+y} then : printf %s "(cached) " >&6 else $as_nop # store AC_LANG_WERROR status, then turn it on save_ac_c_werror_flag="${ac_c_werror_flag}" ac_c_werror_flag=yes ul_save_CPPFLAGS="$CPPFLAGS" CPPFLAGS="-Werror ${CPPFLAGS} -Wjump-misses-init" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main (void) { ; return 0; } _ACEOF if ac_fn_c_try_cpp "$LINENO" then : ul_cv_warn__Wjump_misses_init=yes else $as_nop ul_cv_warn__Wjump_misses_init=no fi rm -f conftest.err conftest.i conftest.$ac_ext # restore AC_LANG_WERROR ac_c_werror_flag="${save_ac_c_werror_flag}" CPPFLAGS="$ul_save_CPPFLAGS" fi { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ul_cv_warn__Wjump_misses_init" >&5 printf "%s\n" "$ul_cv_warn__Wjump_misses_init" >&6; } if test "x$ul_cv_warn__Wjump_misses_init" = xyes then : as_fn_append WARN_CFLAGS " -Wjump-misses-init" fi { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether compiler handles -Wuninitialized" >&5 printf %s "checking whether compiler handles -Wuninitialized... " >&6; } if test ${ul_cv_warn__Wuninitialized+y} then : printf %s "(cached) " >&6 else $as_nop # store AC_LANG_WERROR status, then turn it on save_ac_c_werror_flag="${ac_c_werror_flag}" ac_c_werror_flag=yes ul_save_CPPFLAGS="$CPPFLAGS" CPPFLAGS="-Werror ${CPPFLAGS} -Wuninitialized" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main (void) { ; return 0; } _ACEOF if ac_fn_c_try_cpp "$LINENO" then : ul_cv_warn__Wuninitialized=yes else $as_nop ul_cv_warn__Wuninitialized=no fi rm -f conftest.err conftest.i conftest.$ac_ext # restore AC_LANG_WERROR ac_c_werror_flag="${save_ac_c_werror_flag}" CPPFLAGS="$ul_save_CPPFLAGS" fi { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ul_cv_warn__Wuninitialized" >&5 printf "%s\n" "$ul_cv_warn__Wuninitialized" >&6; } if test "x$ul_cv_warn__Wuninitialized" = xyes then : as_fn_append WARN_CFLAGS " -Wuninitialized" fi { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether compiler handles -Winit-self" >&5 printf %s "checking whether compiler handles -Winit-self... " >&6; } if test ${ul_cv_warn__Winit_self+y} then : printf %s "(cached) " >&6 else $as_nop # store AC_LANG_WERROR status, then turn it on save_ac_c_werror_flag="${ac_c_werror_flag}" ac_c_werror_flag=yes ul_save_CPPFLAGS="$CPPFLAGS" CPPFLAGS="-Werror ${CPPFLAGS} -Winit-self" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main (void) { ; return 0; } _ACEOF if ac_fn_c_try_cpp "$LINENO" then : ul_cv_warn__Winit_self=yes else $as_nop ul_cv_warn__Winit_self=no fi rm -f conftest.err conftest.i conftest.$ac_ext # restore AC_LANG_WERROR ac_c_werror_flag="${save_ac_c_werror_flag}" CPPFLAGS="$ul_save_CPPFLAGS" fi { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ul_cv_warn__Winit_self" >&5 printf "%s\n" "$ul_cv_warn__Winit_self" >&6; } if test "x$ul_cv_warn__Winit_self" = xyes then : as_fn_append WARN_CFLAGS " -Winit-self" fi { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether compiler handles -Wlogical-op" >&5 printf %s "checking whether compiler handles -Wlogical-op... " >&6; } if test ${ul_cv_warn__Wlogical_op+y} then : printf %s "(cached) " >&6 else $as_nop # store AC_LANG_WERROR status, then turn it on save_ac_c_werror_flag="${ac_c_werror_flag}" ac_c_werror_flag=yes ul_save_CPPFLAGS="$CPPFLAGS" CPPFLAGS="-Werror ${CPPFLAGS} -Wlogical-op" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main (void) { ; return 0; } _ACEOF if ac_fn_c_try_cpp "$LINENO" then : ul_cv_warn__Wlogical_op=yes else $as_nop ul_cv_warn__Wlogical_op=no fi rm -f conftest.err conftest.i conftest.$ac_ext # restore AC_LANG_WERROR ac_c_werror_flag="${save_ac_c_werror_flag}" CPPFLAGS="$ul_save_CPPFLAGS" fi { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ul_cv_warn__Wlogical_op" >&5 printf "%s\n" "$ul_cv_warn__Wlogical_op" >&6; } if test "x$ul_cv_warn__Wlogical_op" = xyes then : as_fn_append WARN_CFLAGS " -Wlogical-op" fi { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether compiler handles -Wunused-but-set-parameter" >&5 printf %s "checking whether compiler handles -Wunused-but-set-parameter... " >&6; } if test ${ul_cv_warn__Wunused_but_set_parameter+y} then : printf %s "(cached) " >&6 else $as_nop # store AC_LANG_WERROR status, then turn it on save_ac_c_werror_flag="${ac_c_werror_flag}" ac_c_werror_flag=yes ul_save_CPPFLAGS="$CPPFLAGS" CPPFLAGS="-Werror ${CPPFLAGS} -Wunused-but-set-parameter" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main (void) { ; return 0; } _ACEOF if ac_fn_c_try_cpp "$LINENO" then : ul_cv_warn__Wunused_but_set_parameter=yes else $as_nop ul_cv_warn__Wunused_but_set_parameter=no fi rm -f conftest.err conftest.i conftest.$ac_ext # restore AC_LANG_WERROR ac_c_werror_flag="${save_ac_c_werror_flag}" CPPFLAGS="$ul_save_CPPFLAGS" fi { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ul_cv_warn__Wunused_but_set_parameter" >&5 printf "%s\n" "$ul_cv_warn__Wunused_but_set_parameter" >&6; } if test "x$ul_cv_warn__Wunused_but_set_parameter" = xyes then : as_fn_append WARN_CFLAGS " -Wunused-but-set-parameter" fi { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether compiler handles -Wunused-but-set-variable" >&5 printf %s "checking whether compiler handles -Wunused-but-set-variable... " >&6; } if test ${ul_cv_warn__Wunused_but_set_variable+y} then : printf %s "(cached) " >&6 else $as_nop # store AC_LANG_WERROR status, then turn it on save_ac_c_werror_flag="${ac_c_werror_flag}" ac_c_werror_flag=yes ul_save_CPPFLAGS="$CPPFLAGS" CPPFLAGS="-Werror ${CPPFLAGS} -Wunused-but-set-variable" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main (void) { ; return 0; } _ACEOF if ac_fn_c_try_cpp "$LINENO" then : ul_cv_warn__Wunused_but_set_variable=yes else $as_nop ul_cv_warn__Wunused_but_set_variable=no fi rm -f conftest.err conftest.i conftest.$ac_ext # restore AC_LANG_WERROR ac_c_werror_flag="${save_ac_c_werror_flag}" CPPFLAGS="$ul_save_CPPFLAGS" fi { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ul_cv_warn__Wunused_but_set_variable" >&5 printf "%s\n" "$ul_cv_warn__Wunused_but_set_variable" >&6; } if test "x$ul_cv_warn__Wunused_but_set_variable" = xyes then : as_fn_append WARN_CFLAGS " -Wunused-but-set-variable" fi { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether compiler handles -Wunused-parameter" >&5 printf %s "checking whether compiler handles -Wunused-parameter... " >&6; } if test ${ul_cv_warn__Wunused_parameter+y} then : printf %s "(cached) " >&6 else $as_nop # store AC_LANG_WERROR status, then turn it on save_ac_c_werror_flag="${ac_c_werror_flag}" ac_c_werror_flag=yes ul_save_CPPFLAGS="$CPPFLAGS" CPPFLAGS="-Werror ${CPPFLAGS} -Wunused-parameter" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main (void) { ; return 0; } _ACEOF if ac_fn_c_try_cpp "$LINENO" then : ul_cv_warn__Wunused_parameter=yes else $as_nop ul_cv_warn__Wunused_parameter=no fi rm -f conftest.err conftest.i conftest.$ac_ext # restore AC_LANG_WERROR ac_c_werror_flag="${save_ac_c_werror_flag}" CPPFLAGS="$ul_save_CPPFLAGS" fi { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ul_cv_warn__Wunused_parameter" >&5 printf "%s\n" "$ul_cv_warn__Wunused_parameter" >&6; } if test "x$ul_cv_warn__Wunused_parameter" = xyes then : as_fn_append WARN_CFLAGS " -Wunused-parameter" fi { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether compiler handles -Wunused-result" >&5 printf %s "checking whether compiler handles -Wunused-result... " >&6; } if test ${ul_cv_warn__Wunused_result+y} then : printf %s "(cached) " >&6 else $as_nop # store AC_LANG_WERROR status, then turn it on save_ac_c_werror_flag="${ac_c_werror_flag}" ac_c_werror_flag=yes ul_save_CPPFLAGS="$CPPFLAGS" CPPFLAGS="-Werror ${CPPFLAGS} -Wunused-result" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main (void) { ; return 0; } _ACEOF if ac_fn_c_try_cpp "$LINENO" then : ul_cv_warn__Wunused_result=yes else $as_nop ul_cv_warn__Wunused_result=no fi rm -f conftest.err conftest.i conftest.$ac_ext # restore AC_LANG_WERROR ac_c_werror_flag="${save_ac_c_werror_flag}" CPPFLAGS="$ul_save_CPPFLAGS" fi { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ul_cv_warn__Wunused_result" >&5 printf "%s\n" "$ul_cv_warn__Wunused_result" >&6; } if test "x$ul_cv_warn__Wunused_result" = xyes then : as_fn_append WARN_CFLAGS " -Wunused-result" fi { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether compiler handles -Wunused-variable" >&5 printf %s "checking whether compiler handles -Wunused-variable... " >&6; } if test ${ul_cv_warn__Wunused_variable+y} then : printf %s "(cached) " >&6 else $as_nop # store AC_LANG_WERROR status, then turn it on save_ac_c_werror_flag="${ac_c_werror_flag}" ac_c_werror_flag=yes ul_save_CPPFLAGS="$CPPFLAGS" CPPFLAGS="-Werror ${CPPFLAGS} -Wunused-variable" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main (void) { ; return 0; } _ACEOF if ac_fn_c_try_cpp "$LINENO" then : ul_cv_warn__Wunused_variable=yes else $as_nop ul_cv_warn__Wunused_variable=no fi rm -f conftest.err conftest.i conftest.$ac_ext # restore AC_LANG_WERROR ac_c_werror_flag="${save_ac_c_werror_flag}" CPPFLAGS="$ul_save_CPPFLAGS" fi { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ul_cv_warn__Wunused_variable" >&5 printf "%s\n" "$ul_cv_warn__Wunused_variable" >&6; } if test "x$ul_cv_warn__Wunused_variable" = xyes then : as_fn_append WARN_CFLAGS " -Wunused-variable" fi { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether compiler handles -Wduplicated-cond" >&5 printf %s "checking whether compiler handles -Wduplicated-cond... " >&6; } if test ${ul_cv_warn__Wduplicated_cond+y} then : printf %s "(cached) " >&6 else $as_nop # store AC_LANG_WERROR status, then turn it on save_ac_c_werror_flag="${ac_c_werror_flag}" ac_c_werror_flag=yes ul_save_CPPFLAGS="$CPPFLAGS" CPPFLAGS="-Werror ${CPPFLAGS} -Wduplicated-cond" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main (void) { ; return 0; } _ACEOF if ac_fn_c_try_cpp "$LINENO" then : ul_cv_warn__Wduplicated_cond=yes else $as_nop ul_cv_warn__Wduplicated_cond=no fi rm -f conftest.err conftest.i conftest.$ac_ext # restore AC_LANG_WERROR ac_c_werror_flag="${save_ac_c_werror_flag}" CPPFLAGS="$ul_save_CPPFLAGS" fi { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ul_cv_warn__Wduplicated_cond" >&5 printf "%s\n" "$ul_cv_warn__Wduplicated_cond" >&6; } if test "x$ul_cv_warn__Wduplicated_cond" = xyes then : as_fn_append WARN_CFLAGS " -Wduplicated-cond" fi { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether compiler handles -Wduplicated-branches" >&5 printf %s "checking whether compiler handles -Wduplicated-branches... " >&6; } if test ${ul_cv_warn__Wduplicated_branches+y} then : printf %s "(cached) " >&6 else $as_nop # store AC_LANG_WERROR status, then turn it on save_ac_c_werror_flag="${ac_c_werror_flag}" ac_c_werror_flag=yes ul_save_CPPFLAGS="$CPPFLAGS" CPPFLAGS="-Werror ${CPPFLAGS} -Wduplicated-branches" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main (void) { ; return 0; } _ACEOF if ac_fn_c_try_cpp "$LINENO" then : ul_cv_warn__Wduplicated_branches=yes else $as_nop ul_cv_warn__Wduplicated_branches=no fi rm -f conftest.err conftest.i conftest.$ac_ext # restore AC_LANG_WERROR ac_c_werror_flag="${save_ac_c_werror_flag}" CPPFLAGS="$ul_save_CPPFLAGS" fi { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ul_cv_warn__Wduplicated_branches" >&5 printf "%s\n" "$ul_cv_warn__Wduplicated_branches" >&6; } if test "x$ul_cv_warn__Wduplicated_branches" = xyes then : as_fn_append WARN_CFLAGS " -Wduplicated-branches" fi { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether compiler handles -Wrestrict" >&5 printf %s "checking whether compiler handles -Wrestrict... " >&6; } if test ${ul_cv_warn__Wrestrict+y} then : printf %s "(cached) " >&6 else $as_nop # store AC_LANG_WERROR status, then turn it on save_ac_c_werror_flag="${ac_c_werror_flag}" ac_c_werror_flag=yes ul_save_CPPFLAGS="$CPPFLAGS" CPPFLAGS="-Werror ${CPPFLAGS} -Wrestrict" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main (void) { ; return 0; } _ACEOF if ac_fn_c_try_cpp "$LINENO" then : ul_cv_warn__Wrestrict=yes else $as_nop ul_cv_warn__Wrestrict=no fi rm -f conftest.err conftest.i conftest.$ac_ext # restore AC_LANG_WERROR ac_c_werror_flag="${save_ac_c_werror_flag}" CPPFLAGS="$ul_save_CPPFLAGS" fi { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ul_cv_warn__Wrestrict" >&5 printf "%s\n" "$ul_cv_warn__Wrestrict" >&6; } if test "x$ul_cv_warn__Wrestrict" = xyes then : as_fn_append WARN_CFLAGS " -Wrestrict" fi { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether compiler handles -Wnull-dereference" >&5 printf %s "checking whether compiler handles -Wnull-dereference... " >&6; } if test ${ul_cv_warn__Wnull_dereference+y} then : printf %s "(cached) " >&6 else $as_nop # store AC_LANG_WERROR status, then turn it on save_ac_c_werror_flag="${ac_c_werror_flag}" ac_c_werror_flag=yes ul_save_CPPFLAGS="$CPPFLAGS" CPPFLAGS="-Werror ${CPPFLAGS} -Wnull-dereference" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main (void) { ; return 0; } _ACEOF if ac_fn_c_try_cpp "$LINENO" then : ul_cv_warn__Wnull_dereference=yes else $as_nop ul_cv_warn__Wnull_dereference=no fi rm -f conftest.err conftest.i conftest.$ac_ext # restore AC_LANG_WERROR ac_c_werror_flag="${save_ac_c_werror_flag}" CPPFLAGS="$ul_save_CPPFLAGS" fi { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ul_cv_warn__Wnull_dereference" >&5 printf "%s\n" "$ul_cv_warn__Wnull_dereference" >&6; } if test "x$ul_cv_warn__Wnull_dereference" = xyes then : as_fn_append WARN_CFLAGS " -Wnull-dereference" fi { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether compiler handles -Wno-shadow" >&5 printf %s "checking whether compiler handles -Wno-shadow... 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"no acceptable grep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5 fi else ac_cv_path_GREP=$GREP fi fi { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_GREP" >&5 printf "%s\n" "$ac_cv_path_GREP" >&6; } GREP="$ac_cv_path_GREP" { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for egrep" >&5 printf %s "checking for egrep... 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(We don't define these ourselves, as they can affect # other portions of the system API in unpredictable ways.) cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ # if !defined(_OPEN_THREADS) && !defined(_UNIX03_THREADS) AX_PTHREAD_ZOS_MISSING # endif _ACEOF if (eval "$ac_cpp conftest.$ac_ext") 2>&5 | $EGREP "AX_PTHREAD_ZOS_MISSING" >/dev/null 2>&1 then : { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: IBM z/OS requires -D_OPEN_THREADS or -D_UNIX03_THREADS to enable pthreads support." >&5 printf "%s\n" "$as_me: WARNING: IBM z/OS requires -D_OPEN_THREADS or -D_UNIX03_THREADS to enable pthreads support." >&2;} fi rm -rf conftest* ;; solaris*) # On Solaris (at least, for some versions), libc contains stubbed # (non-functional) versions of the pthreads routines, so link-based # tests will erroneously succeed. 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" >&6; } if test ${ac_cv_prog_ax_pthread_config+y} then : printf %s "(cached) " >&6 else $as_nop if test -n "$ax_pthread_config"; then ac_cv_prog_ax_pthread_config="$ax_pthread_config" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS case $as_dir in #((( '') as_dir=./ ;; */) ;; *) as_dir=$as_dir/ ;; esac for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then ac_cv_prog_ax_pthread_config="yes" printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS test -z "$ac_cv_prog_ax_pthread_config" && ac_cv_prog_ax_pthread_config="no" fi fi ax_pthread_config=$ac_cv_prog_ax_pthread_config if test -n "$ax_pthread_config"; then { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ax_pthread_config" >&5 printf "%s\n" "$ax_pthread_config" >&6; } else { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5 printf "%s\n" "no" >&6; } fi if test "x$ax_pthread_config" = "xno" then : continue fi PTHREAD_CFLAGS="`pthread-config --cflags`" PTHREAD_LIBS="`pthread-config --ldflags` `pthread-config --libs`" ;; *) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for the pthreads library -l$ax_pthread_try_flag" >&5 printf %s "checking for the pthreads library -l$ax_pthread_try_flag... " >&6; } PTHREAD_LIBS="-l$ax_pthread_try_flag" ;; esac ax_pthread_save_CFLAGS="$CFLAGS" ax_pthread_save_LIBS="$LIBS" CFLAGS="$CFLAGS $PTHREAD_CFLAGS" LIBS="$PTHREAD_LIBS $LIBS" # Check for various functions. We must include pthread.h, # since some functions may be macros. (On the Sequent, we # need a special flag -Kthread to make this header compile.) # We check for pthread_join because it is in -lpthread on IRIX # while pthread_create is in libc. We check for pthread_attr_init # due to DEC craziness with -lpthreads. We check for # pthread_cleanup_push because it is one of the few pthread # functions on Solaris that doesn't have a non-functional libc stub. # We try pthread_create on general principles. cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #include # if $ax_pthread_check_cond # error "$ax_pthread_check_macro must be defined" # endif static void *some_global = NULL; static void routine(void *a) { /* To avoid any unused-parameter or unused-but-set-parameter warning. */ some_global = a; } static void *start_routine(void *a) { return a; } int main (void) { pthread_t th; pthread_attr_t attr; pthread_create(&th, 0, start_routine, 0); pthread_join(th, 0); pthread_attr_init(&attr); pthread_cleanup_push(routine, 0); pthread_cleanup_pop(0) /* ; */ ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO" then : ax_pthread_ok=yes fi rm -f core conftest.err conftest.$ac_objext conftest.beam \ conftest$ac_exeext conftest.$ac_ext CFLAGS="$ax_pthread_save_CFLAGS" LIBS="$ax_pthread_save_LIBS" { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ax_pthread_ok" >&5 printf "%s\n" "$ax_pthread_ok" >&6; } if test "x$ax_pthread_ok" = "xyes" then : break fi PTHREAD_LIBS="" PTHREAD_CFLAGS="" done fi # Clang needs special handling, because older versions handle the -pthread # option in a rather... idiosyncratic way if test "x$ax_pthread_clang" = "xyes"; then # Clang takes -pthread; it has never supported any other flag # (Note 1: This will need to be revisited if a system that Clang # supports has POSIX threads in a separate library. This tends not # to be the way of modern systems, but it's conceivable.) # (Note 2: On some systems, notably Darwin, -pthread is not needed # to get POSIX threads support; the API is always present and # active. We could reasonably leave PTHREAD_CFLAGS empty. But # -pthread does define _REENTRANT, and while the Darwin headers # ignore this macro, third-party headers might not.) # However, older versions of Clang make a point of warning the user # that, in an invocation where only linking and no compilation is # taking place, the -pthread option has no effect ("argument unused # during compilation"). They expect -pthread to be passed in only # when source code is being compiled. # # Problem is, this is at odds with the way Automake and most other # C build frameworks function, which is that the same flags used in # compilation (CFLAGS) are also used in linking. Many systems # supported by AX_PTHREAD require exactly this for POSIX threads # support, and in fact it is often not straightforward to specify a # flag that is used only in the compilation phase and not in # linking. Such a scenario is extremely rare in practice. # # Even though use of the -pthread flag in linking would only print # a warning, this can be a nuisance for well-run software projects # that build with -Werror. So if the active version of Clang has # this misfeature, we search for an option to squash it. { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether Clang needs flag to prevent \"argument unused\" warning when linking with -pthread" >&5 printf %s "checking whether Clang needs flag to prevent \"argument unused\" warning when linking with -pthread... " >&6; } if test ${ax_cv_PTHREAD_CLANG_NO_WARN_FLAG+y} then : printf %s "(cached) " >&6 else $as_nop ax_cv_PTHREAD_CLANG_NO_WARN_FLAG=unknown # Create an alternate version of $ac_link that compiles and # links in two steps (.c -> .o, .o -> exe) instead of one # (.c -> exe), because the warning occurs only in the second # step ax_pthread_save_ac_link="$ac_link" ax_pthread_sed='s/conftest\.\$ac_ext/conftest.$ac_objext/g' ax_pthread_link_step=`printf "%s\n" "$ac_link" | sed "$ax_pthread_sed"` ax_pthread_2step_ac_link="($ac_compile) && (echo ==== >&5) && ($ax_pthread_link_step)" ax_pthread_save_CFLAGS="$CFLAGS" for ax_pthread_try in '' -Qunused-arguments -Wno-unused-command-line-argument unknown; do if test "x$ax_pthread_try" = "xunknown" then : break fi CFLAGS="-Werror -Wunknown-warning-option $ax_pthread_try -pthread $ax_pthread_save_CFLAGS" ac_link="$ax_pthread_save_ac_link" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main(void){return 0;} _ACEOF if ac_fn_c_try_link "$LINENO" then : ac_link="$ax_pthread_2step_ac_link" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main(void){return 0;} _ACEOF if ac_fn_c_try_link "$LINENO" then : break fi rm -f core conftest.err conftest.$ac_objext conftest.beam \ conftest$ac_exeext conftest.$ac_ext fi rm -f core conftest.err conftest.$ac_objext conftest.beam \ conftest$ac_exeext conftest.$ac_ext done ac_link="$ax_pthread_save_ac_link" CFLAGS="$ax_pthread_save_CFLAGS" if test "x$ax_pthread_try" = "x" then : ax_pthread_try=no fi ax_cv_PTHREAD_CLANG_NO_WARN_FLAG="$ax_pthread_try" fi { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ax_cv_PTHREAD_CLANG_NO_WARN_FLAG" >&5 printf "%s\n" "$ax_cv_PTHREAD_CLANG_NO_WARN_FLAG" >&6; } case "$ax_cv_PTHREAD_CLANG_NO_WARN_FLAG" in no | unknown) ;; *) PTHREAD_CFLAGS="$ax_cv_PTHREAD_CLANG_NO_WARN_FLAG $PTHREAD_CFLAGS" ;; esac fi # $ax_pthread_clang = yes # Various other checks: if test "x$ax_pthread_ok" = "xyes"; then ax_pthread_save_CFLAGS="$CFLAGS" ax_pthread_save_LIBS="$LIBS" CFLAGS="$CFLAGS $PTHREAD_CFLAGS" LIBS="$PTHREAD_LIBS $LIBS" # Detect AIX lossage: JOINABLE attribute is called UNDETACHED. { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for joinable pthread attribute" >&5 printf %s "checking for joinable pthread attribute... " >&6; } if test ${ax_cv_PTHREAD_JOINABLE_ATTR+y} then : printf %s "(cached) " >&6 else $as_nop ax_cv_PTHREAD_JOINABLE_ATTR=unknown for ax_pthread_attr in PTHREAD_CREATE_JOINABLE PTHREAD_CREATE_UNDETACHED; do cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #include int main (void) { int attr = $ax_pthread_attr; return attr /* ; */ ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO" then : ax_cv_PTHREAD_JOINABLE_ATTR=$ax_pthread_attr; break fi rm -f core conftest.err conftest.$ac_objext conftest.beam \ conftest$ac_exeext conftest.$ac_ext done fi { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ax_cv_PTHREAD_JOINABLE_ATTR" >&5 printf "%s\n" "$ax_cv_PTHREAD_JOINABLE_ATTR" >&6; } if test "x$ax_cv_PTHREAD_JOINABLE_ATTR" != "xunknown" && \ test "x$ax_cv_PTHREAD_JOINABLE_ATTR" != "xPTHREAD_CREATE_JOINABLE" && \ test "x$ax_pthread_joinable_attr_defined" != "xyes" then : printf "%s\n" "#define PTHREAD_CREATE_JOINABLE $ax_cv_PTHREAD_JOINABLE_ATTR" >>confdefs.h ax_pthread_joinable_attr_defined=yes fi { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether more special flags are required for pthreads" >&5 printf %s "checking whether more special flags are required for pthreads... " >&6; } if test ${ax_cv_PTHREAD_SPECIAL_FLAGS+y} then : printf %s "(cached) " >&6 else $as_nop ax_cv_PTHREAD_SPECIAL_FLAGS=no case $host_os in solaris*) ax_cv_PTHREAD_SPECIAL_FLAGS="-D_POSIX_PTHREAD_SEMANTICS" ;; esac fi { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ax_cv_PTHREAD_SPECIAL_FLAGS" >&5 printf "%s\n" "$ax_cv_PTHREAD_SPECIAL_FLAGS" >&6; } if test "x$ax_cv_PTHREAD_SPECIAL_FLAGS" != "xno" && \ test "x$ax_pthread_special_flags_added" != "xyes" then : PTHREAD_CFLAGS="$ax_cv_PTHREAD_SPECIAL_FLAGS $PTHREAD_CFLAGS" ax_pthread_special_flags_added=yes fi { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for PTHREAD_PRIO_INHERIT" >&5 printf %s "checking for PTHREAD_PRIO_INHERIT... 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"cannot find liblzo" "$LINENO" 5 else $as_nop with_lzo="no" fi else $as_nop with_lzo="yes" fi if test "x$with_zstd" != "xno" then : pkg_failed=no { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5 printf %s "checking for libzstd... 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"cannot find xattr/acl headers" "$LINENO" 5 else $as_nop with_xattr="$have_xattr" fi fi if test "x$with_selinux" != "xno" then : have_selinux="yes" pkg_failed=no { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for libselinux" >&5 printf %s "checking for libselinux... " >&6; } if test -n "$LIBSELINUX_CFLAGS"; then pkg_cv_LIBSELINUX_CFLAGS="$LIBSELINUX_CFLAGS" elif test -n "$PKG_CONFIG"; then if test -n "$PKG_CONFIG" && \ { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libselinux\""; } >&5 ($PKG_CONFIG --exists --print-errors "libselinux") 2>&5 ac_status=$? printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 test $ac_status = 0; }; then pkg_cv_LIBSELINUX_CFLAGS=`$PKG_CONFIG --cflags "libselinux" 2>/dev/null` test "x$?" != "x0" && pkg_failed=yes else pkg_failed=yes fi else pkg_failed=untried fi if test -n "$LIBSELINUX_LIBS"; then pkg_cv_LIBSELINUX_LIBS="$LIBSELINUX_LIBS" elif test -n "$PKG_CONFIG"; then if test -n "$PKG_CONFIG" && \ { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libselinux\""; } >&5 ($PKG_CONFIG --exists --print-errors "libselinux") 2>&5 ac_status=$? printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 test $ac_status = 0; }; then pkg_cv_LIBSELINUX_LIBS=`$PKG_CONFIG --libs "libselinux" 2>/dev/null` test "x$?" != "x0" && pkg_failed=yes else pkg_failed=yes fi else pkg_failed=untried fi if test $pkg_failed = yes; then { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5 printf "%s\n" "no" >&6; } if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then _pkg_short_errors_supported=yes else _pkg_short_errors_supported=no fi if test $_pkg_short_errors_supported = yes; then LIBSELINUX_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libselinux" 2>&1` else LIBSELINUX_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libselinux" 2>&1` fi # Put the nasty error message in config.log where it belongs echo "$LIBSELINUX_PKG_ERRORS" >&5 have_selinux="no" elif test $pkg_failed = untried; then { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5 printf "%s\n" "no" >&6; } have_selinux="no" else LIBSELINUX_CFLAGS=$pkg_cv_LIBSELINUX_CFLAGS LIBSELINUX_LIBS=$pkg_cv_LIBSELINUX_LIBS { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5 printf "%s\n" "yes" >&6; } fi for ac_header in selinux/selinux.h do : ac_fn_c_check_header_compile "$LINENO" "selinux/selinux.h" "ac_cv_header_selinux_selinux_h" "$ac_includes_default" if test "x$ac_cv_header_selinux_selinux_h" = xyes then : printf "%s\n" "#define HAVE_SELINUX_SELINUX_H 1" >>confdefs.h else $as_nop have_selinux="no" fi done for ac_header in selinux/label.h do : ac_fn_c_check_header_compile "$LINENO" "selinux/label.h" "ac_cv_header_selinux_label_h" "$ac_includes_default" if test "x$ac_cv_header_selinux_label_h" = xyes then : printf "%s\n" "#define HAVE_SELINUX_LABEL_H 1" >>confdefs.h else $as_nop have_selinux="no" fi done if test "x$with_selinux" != "xcheck" -a "x$have_selinux" = "xno" then : as_fn_error $? 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