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Use autoconf features to deal with feature-test macros.

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This commit is contained in:
H. Peter Anvin 2007-10-03 17:41:38 -07:00
parent 80f86e5a04
commit bbb17208a9
1 changed files with 2 additions and 21 deletions
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23
configure.in
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@ -2,33 +2,14 @@ dnl
dnl autoconf input file to generate MCONFIG
dnl
AC_PREREQ(2.52)
AC_PREREQ(2.59)
AC_INIT(MCONFIG.in)
AC_PREFIX_DEFAULT(/usr)
AC_USE_SYSTEM_EXTENSIONS
AC_ISC_POSIX
AC_AIX
AC_MINIX
AC_PROG_CC
dnl
dnl Feature-test macros. These need to be set in CFLAGS, rather in
dnl aconfig.h, or "configure" will run in a different environment than
dnl we eventually we build in.
dnl
dnl Needed on Solaris/cc or Solaris/gcc
CFLAGS="$CFLAGS -D_XPG4_2"
CFLAGS="$CFLAGS -D_XOPEN_SOURCE"
CFLAGS="$CFLAGS -D__EXTENSIONS__"
dnl Needed on some glibc systems
CFLAGS="$CFLAGS -D_GNU_SOURCE"
dnl Needed on Digital Unix
CFLAGS="$CFLAGS -D_OSF_SOURCE"
CFLAGS="$CFLAGS -D_XOPEN_SOURCE_EXTENDED"
AC_C_CONST
AC_C_INLINE