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| author |   Naohiro Tamura <naohirot@fujitsu.com> | 2021-05-22 02:42:48 +0000 |
|---|---|---|
| committer |   Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2021-06-04 10:16:00 -0300 |
| commit | b190bccc8a7e4919d3bd68a153577284f201819a (patch) | |
| tree | 04374fc6123931c91c08adb77c372986ce9c9053 /configure.ac | |
| parent | libio: Assume _IO_lock_inexpensive (diff) | |
| download | glibc-b190bccc8a7e4919d3bd68a153577284f201819a.tar.gz glibc-b190bccc8a7e4919d3bd68a153577284f201819a.tar.bz2 glibc-b190bccc8a7e4919d3bd68a153577284f201819a.zip | |
configure: Replaced obsolete AC_TRY_COMPILE
This patch replaced obsolete AC_TRY_COMPILE to AC_COMPILE_IFELSE or
AC_PREPROC_IFELSE.
It has been confirmed that GNU 'autoconf' 2.69 suppressed obsolete
warnings, updated the following files:
- configure
- sysdeps/mach/configure
- sysdeps/mach/hurd/configure
- sysdeps/s390/configure
- sysdeps/unix/sysv/linux/configure
and didn't change the following files:
- sysdeps/ieee754/ldbl-opt/configure
- sysdeps/unix/sysv/linux/powerpc/configure
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 19 |
1 files changed, 11 insertions, 8 deletions
diff --git a/configure.ac b/configure.ac index 19051b8ee0..f2588f394f 100644 --- a/configure.ac +++ b/configure.ac @@ -457,10 +457,10 @@ AC_ARG_ENABLE([mathvec], [build_mathvec=$enableval], [build_mathvec=notset]) -AC_TRY_COMPILE([], [ +AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[]], [[ #ifndef __CET__ # error no CET compiler support -#endif], +#endif]])], [libc_cv_compiler_default_cet=yes], [libc_cv_compiler_default_cet=no]) @@ -1025,10 +1025,10 @@ AC_CHECK_PROG_VER(BISON, bison, --version, [2.7*|[3-9].*|[1-9][0-9]*], critic_missing="$critic_missing bison") AC_CACHE_CHECK([if $CC is sufficient to build libc], libc_cv_compiler_ok, [ -AC_TRY_COMPILE([], [ +AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[]], [[ #if !defined __GNUC__ || __GNUC__ < 6 || (__GNUC__ == 6 && __GNUC_MINOR__ < 2) #error insufficient compiler -#endif], +#endif]])], [libc_cv_compiler_ok=yes], [libc_cv_compiler_ok=no])]) AS_IF([test $libc_cv_compiler_ok != yes], @@ -1639,11 +1639,14 @@ CPPUNDEFS= dnl Check for silly hacked compilers predefining _FORTIFY_SOURCE. dnl Since we are building the implementations of the fortified functions here, dnl having the macro defined interacts very badly. +dnl _FORTIFY_SOURCE requires compiler optimization level 1 (gcc -O1) +dnl and above (see "man FEATURE_TEST_MACROS"). +dnl So do NOT replace AC_COMPILE_IFELSE with AC_PREPROC_IFELSE. AC_CACHE_CHECK([for _FORTIFY_SOURCE predefine], libc_cv_predef_fortify_source, -[AC_TRY_COMPILE([], [ +[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[ #ifdef _FORTIFY_SOURCE # error bogon -#endif], +#endif]])], [libc_cv_predef_fortify_source=no], [libc_cv_predef_fortify_source=yes])]) if test $libc_cv_predef_fortify_source = yes; then @@ -1711,7 +1714,7 @@ fi AC_CACHE_CHECK(for __builtin_trap with no external dependencies, libc_cv_builtin_trap, [dnl libc_cv_builtin_trap=no -AC_TRY_COMPILE([], [__builtin_trap ()], [ +AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[__builtin_trap ()]])],[ libc_undefs=`$NM -u conftest.o | LC_ALL=C $AWK '$1 == "U" { print $2 | "sort -u"; next } { exit(1) }' \ 2>&AS_MESSAGE_LOG_FD` || { @@ -1720,7 +1723,7 @@ libc_undefs=`$NM -u conftest.o | echo >&AS_MESSAGE_LOG_FD "libc_undefs='$libc_undefs'" if test -z "$libc_undefs"; then libc_cv_builtin_trap=yes -fi])]) +fi],[])]) if test $libc_cv_builtin_trap = yes; then AC_DEFINE([HAVE_BUILTIN_TRAP]) fi |