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make gcc 2.95 friendly (OpenBSD seems to still use it)

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This commit is contained in:
Bill Currie 2003-08-11 16:02:06 +00:00
parent 7ead5a91f8
commit ce3accd4f1
2 changed files with 26 additions and 17 deletions
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18
acinclude.m4
View file

@ -1155,3 +1155,21 @@ else
done
fi
])
AC_DEFUN(QF_CC_OPTION, [
AC_MSG_CHECKING(whether $1 works)
save_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS $1"
qf_opt_ok=no
AC_TRY_COMPILE(
[],
[],
qf_opt_ok=yes
AC_MSG_RESULT(yes),
AC_MSG_RESULT(no)
)
CFLAGS="$save_CFLAGS"
if test "x$qf_opt_ok" = xyes; then
CFLAGS="$CFLAGS $1"
fi
])

25
configure.ac
View file

@ -1312,7 +1312,12 @@ if test "x$optimize" = xyes; then
CC_SUB=$3
IFS=" "
AC_MSG_RESULT($CCVER)
heavy="-O2 -frename-registers -finline-limit=32000 -ffast-math -funroll-loops -fomit-frame-pointer -fexpensive-optimizations"
saved_cflags="$CFLAGS"
CFLAGS=""
QF_CC_OPTION(-frename-registers)
QF_CC_OPTION(-finline-limit=32000 -Winline)
heavy="-O2 $CFLAGS -ffast-math -funroll-loops -fomit-frame-pointer -fexpensive-optimizations"
CFLAGS="$saved_cflags"
light="-O2"
AC_ARG_ENABLE(strict-aliasing,
[ --enable-strict-aliasing enable the -fstrict-aliasing ooption of gcc])
@ -1423,21 +1428,7 @@ if test "x$GCC" = xyes; then
)
fi
if test "x$check_pipe" = xyes; then
AC_MSG_CHECKING(whether -pipe works)
save_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -pipe"
pipe_ok=no
AC_TRY_COMPILE(
[],
[],
pipe_ok=yes
AC_MSG_RESULT(yes),
AC_MSG_RESULT(no)
)
CFLAGS="$save_CFLAGS"
if test "x$pipe_ok" = xyes; then
CFLAGS="$CFLAGS -pipe"
fi
QF_CC_OPTION(-pipe)
fi
dnl QuakeForge uses lots of BCPL-style (//) comments, which can cause problems
@ -1472,7 +1463,7 @@ AC_ARG_ENABLE(Werror,
dnl We want warnings, lots of warnings...
if test "x$GCC" = "xyes"; then
if test "x$enable_Werror" $cvs_def_enabled; then
CFLAGS="$CFLAGS -Wall -Werror -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Winline"
CFLAGS="$CFLAGS -Wall -Werror -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations"
else
CFLAGS="$CFLAGS -Wall"
fi