diff options
Diffstat (limited to 'gcc/configure.ac')
| -rw-r--r-- | gcc/configure.ac | 21 |
1 files changed, 9 insertions, 12 deletions
diff --git a/gcc/configure.ac b/gcc/configure.ac index 1ac290e3c6e..aa01d734d71 100644 --- a/gcc/configure.ac +++ b/gcc/configure.ac @@ -23,7 +23,6 @@ # Initialization and sanity checks # -------------------------------- -AC_PREREQ(2.64) AC_INIT AC_CONFIG_SRCDIR(tree.c) AC_CONFIG_HEADER(auto-host.h:config.in) @@ -450,11 +449,11 @@ if test "$GCC" = yes; then # -fno-strict-aliasing *and* is older than GCC 4.3. CXXFLAGS="$CXXFLAGS -fno-strict-aliasing" AC_MSG_CHECKING([whether $CXX is affected by placement new aliasing bug]) - AC_COMPILE_IFELSE([ + AC_COMPILE_IFELSE([AC_LANG_SOURCE([ #if (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) #error compiler not affected by placement new aliasing bug #endif -], +])], [AC_MSG_RESULT([yes]); aliasing_flags='-fno-strict-aliasing'], [AC_MSG_RESULT([no])]) @@ -1611,12 +1610,12 @@ case ${host} in powerpc*-*-darwin*) AC_CACHE_CHECK([whether mcontext_t fields have underscores], gcc_cv_mcontext_underscores, - AC_COMPILE_IFELSE([ + AC_COMPILE_IFELSE([AC_LANG_SOURCE([ #include <sys/cdefs.h> #include <sys/signal.h> #include <ucontext.h> int main() { mcontext_t m; if (m->ss.srr0) return 0; return 0; } -], +])], gcc_cv_mcontext_underscores=no, gcc_cv_mcontext_underscores=yes)) if test $gcc_cv_mcontext_underscores = yes; then AC_DEFINE(HAS_MCONTEXT_T_UNDERSCORES,,dnl @@ -2904,8 +2903,7 @@ gcc_GAS_CHECK_FEATURE([cfi personality directive], .cfi_personality 0, symbol .cfi_endproc]) AC_DEFINE_UNQUOTED(HAVE_GAS_CFI_PERSONALITY_DIRECTIVE, - [`if test $gcc_cv_as_cfi_personality_directive = yes; - then echo 1; else echo 0; fi`], + [`if test $gcc_cv_as_cfi_personality_directive = yes; then echo 1; else echo 0; fi`], [Define 0/1 if your assembler supports .cfi_personality.]) gcc_GAS_CHECK_FEATURE([cfi sections directive], @@ -2932,8 +2930,7 @@ gcc_GAS_CHECK_FEATURE([cfi sections directive], esac]) GCC_TARGET_TEMPLATE(HAVE_GAS_CFI_SECTIONS_DIRECTIVE) AC_DEFINE_UNQUOTED(HAVE_GAS_CFI_SECTIONS_DIRECTIVE, - [`if test $gcc_cv_as_cfi_sections_directive = yes; - then echo 1; else echo 0; fi`], + [`if test $gcc_cv_as_cfi_sections_directive = yes; then echo 1; else echo 0; fi`], [Define 0/1 if your assembler supports .cfi_sections.]) # GAS versions up to and including 2.11.0 may mis-optimize @@ -5537,7 +5534,7 @@ AC_MSG_CHECKING(linker mapfile support for clearing hardware capabilities) saved_LDFLAGS="$LDFLAGS" for clearcap_map in sol2-clearcapv2.map sol2-clearcap.map; do LDFLAGS="$saved_LDFLAGS -Wl,-M,${srcdir}/config/$clearcap_map" - AC_LINK_IFELSE([int main(void) {return 0;}], + AC_LINK_IFELSE([AC_LANG_SOURCE([int main(void) {return 0;}])], [gcc_cv_ld_clearcap=yes; break], [gcc_cv_ld_clearcap=no]) done LDFLAGS="$saved_LDFLAGS" @@ -6505,7 +6502,7 @@ AC_CACHE_CHECK([for -fno-PIE option], [gcc_cv_c_no_fpie], [saved_CXXFLAGS="$CXXFLAGS" CXXFLAGS="$CXXFLAGS -fno-PIE" - AC_COMPILE_IFELSE([int main(void) {return 0;}], + AC_COMPILE_IFELSE([AC_LANG_SOURCE([int main(void) {return 0;}])], [gcc_cv_c_no_fpie=yes], [gcc_cv_c_no_fpie=no]) CXXFLAGS="$saved_CXXFLAGS"]) @@ -6519,7 +6516,7 @@ AC_CACHE_CHECK([for -no-pie option], [gcc_cv_no_pie], [saved_LDFLAGS="$LDFLAGS" LDFLAGS="$LDFLAGS -no-pie" - AC_LINK_IFELSE([int main(void) {return 0;}], + AC_LINK_IFELSE([AC_LANG_SOURCE([int main(void) {return 0;}])], [gcc_cv_no_pie=yes], [gcc_cv_no_pie=no]) LDFLAGS="$saved_LDFLAGS"]) |