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configure: test correctly PIE and PIC flags, remove -O2 which errors out on pcc.

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This commit is contained in:
Juan RP 2011-02-24 16:22:09 +01:00
parent 0a6299318e
commit 777a91f62a
1 changed files with 15 additions and 7 deletions
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22
configure vendored
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@ -162,9 +162,8 @@ else
echo "Using compiler $CC"
fi
echo "CC = $CC" >>$CONFIG_MK
echo "CFLAGS = -fPIC -DPIC" >>$CONFIG_MK
if [ -n "$CFLAGS" ]; then
echo "CFLAGS += $CFLAGS" >>$CONFIG_MK
echo "CFLAGS = $CFLAGS" >>$CONFIG_MK
fi
echo "LDFLAGS = -L\$(TOPDIR)/lib -L\$(LIBDIR)" >>$CONFIG_MK
if [ -n "$LDFLAGS" ]; then
@ -246,6 +245,9 @@ done
#
# Check for some compiler flags.
#
check_compiler_flag pic f CFLAGS
check_compiler_flag PIC f CFLAGS
check_compiler_flag stack-protector-all f CFLAGS
if [ $? -eq 0 ]; then
if [ "$CC" = "gcc" ]; then
@ -262,8 +264,8 @@ if [ $? -eq 0 ]; then
fi
check_compiler_flag "std=c99" "" CFLAGS
check_compiler_flag "l,--as-needed" W LDFLAGS
check_compiler_flag "O2" "" CFLAGS
check_compiler_flag "pipe" "" CFLAGS
#
# Check for -Wl,--export-dynamic and if it fails, try -rdynamic.
#
@ -276,10 +278,16 @@ fi
# Check if -fPIE and -pie are supported if --build-pie is set.
#
if [ -n "$BUILD_PIE" ]; then
BUILD_PIE_VAL=yes
echo "Building programs as PIE (Position Independent Executable)."
[ "$CC" = "gcc" ] && check_compiler_flag PIE f PROG_CFLAGS
check_compiler_flag pie "" PROG_LDFLAGS
check_compiler_flag PIE f PROG_CFLAGS
if [ $? -eq 0 ]; then
check_compiler_flag pie "" PROG_LDFLAGS
fi
if [ $? -eq 0 ]; then
echo "Building programs as PIE (Position Independent Executable)."
BUILD_PIE_VAL=yes
else
BUILD_PIE_VAL=no
fi
fi
#