configure: drop unnecessary feature flag checks

Work on #2999.
This commit is contained in:
David Adam 2016-05-06 23:55:07 +01:00
parent f5dcb6a0cb
commit e39628bbe9

View File

@ -230,49 +230,6 @@ AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],[[]])],
LDFLAGS="$prev_LDFLAGS"
#
# If we are compiling against glibc, set some flags to work around
# some rather stupid attempts to hide prototypes for *wprintf
# functions, as well as prototypes of various gnu extensions.
#
AC_MSG_CHECKING([if we are compiling against glibc])
AC_RUN_IFELSE(
[
AC_LANG_PROGRAM(
[
#include <stdlib.h>
#ifdef __GLIBC__
#define STATUS 0
#else
#define STATUS 1
#endif
],
[
return STATUS;
]
)
],
[glibc=yes],
[glibc=no]
)
if test "$glibc" = yes; then
AC_MSG_RESULT(yes)
#
# This gives us access to prototypes for gnu extensions and C99
# functions if we are compiling agains glibc. All GNU extensions
# that are used must have a fallback implementation available in
# fallback.h, in order to keep fish working on non-gnu platforms.
#
CXXFLAGS="$CXXFLAGS -D_GNU_SOURCE=1 -D_ISO99_SOURCE=1"
else
AC_MSG_RESULT(no)
fi
#
# Test cpu for special handling of ppc
#