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| author | Flavio Cruz <flaviocruz@gmail.com> | 2022-12-18 19:46:15 -0500 |
|---|---|---|
| committer | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2022-12-19 01:49:30 +0100 |
| commit | 8b8c768e3c701ed1993789bb46acb8a12c7a93df (patch) | |
| tree | 3b97ed037df898e99ec59a0e3ac482c9aa53cdb7 /sysdeps/mach/configure.ac | |
| parent | 71e408e45dcacf429a94b2807f75aaadd8d37cb9 (diff) | |
| download | glibc-8b8c768e3c701ed1993789bb46acb8a12c7a93df.tar.gz glibc-8b8c768e3c701ed1993789bb46acb8a12c7a93df.tar.xz glibc-8b8c768e3c701ed1993789bb46acb8a12c7a93df.zip | |
Force use of -ffreestanding when checking for gnumach headers
Without this ./configure assumes that we are in a fully hosted environment, which might not be the case. After this patch, we can rely on the freestanding header files provided by GCC such as stdint.h. Message-Id: <Y5+0V9osFc/zXMq0@mars>
Diffstat (limited to 'sysdeps/mach/configure.ac')
| -rw-r--r-- | sysdeps/mach/configure.ac | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/sysdeps/mach/configure.ac b/sysdeps/mach/configure.ac index 61b00d66b1..5816c3d4ad 100644 --- a/sysdeps/mach/configure.ac +++ b/sysdeps/mach/configure.ac @@ -12,8 +12,11 @@ if test -n "$sysheaders"; then fi ### Sanity checks for Mach header installation +old_CFLAGS=$CFLAGS +CFLAGS="$CFLAGS -ffreestanding" AC_CHECK_HEADER(mach/mach_types.h,, [AC_MSG_ERROR([cannot find Mach headers])], -) +CFLAGS=$old_CFLAGS AC_CHECK_HEADER(mach/mach_types.defs,, [dnl AC_MSG_ERROR([cannot find Mach .defs files])], -) @@ -42,6 +45,8 @@ dnl The creation_time field is a GNU Mach addition the other variants lack. dnl AC_CACHE_CHECK(for creation_time in task_basic_info, libc_cv_mach_task_creation_time, [dnl +old_CFLAGS=$CFLAGS +CFLAGS="$CFLAGS -ffreestanding" AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <mach/task_info.h>]], [[ extern struct task_basic_info *i; long s = i->creation_time.seconds; @@ -49,6 +54,7 @@ long s = i->creation_time.seconds; if test $libc_cv_mach_task_creation_time = no; then AC_MSG_ERROR([you need Mach headers supporting task_info.creation_time]) fi +CFLAGS=$old_CFLAGS dnl dnl The Darwin variant no longer has <mach/mach.defs> |