# $Id: Head.U,v 3.0.1.9 1997/02/28 15:02:09 ram Exp $
#
-# Generated on Sun Apr 10 19:26:39 CEST 2005 [metaconfig 3.0 PL70]
+# Generated on Wed May 25 21:03:27 CEST 2005 [metaconfig 3.0 PL70]
# (with additional metaconfig patches by perlbug@perl.org)
cat >c1$$ <<EOF
d_alarm=''
asctime_r_proto=''
d_asctime_r=''
-d_attribut=''
+d_attribute_format=''
+d_attribute_malloc=''
+d_attribute_nonnull=''
+d_attribute_noreturn=''
+d_attribute_pure=''
+d_attribute_unused=''
+d_attribute_warn_unused_result=''
d_bcmp=''
d_bcopy=''
d_bzero=''
d_sigaction=''
d_sigprocmask=''
d_sigsetjmp=''
-d_sitecustomize=''
usesitecustomize=''
d_sockatmark=''
d_sockatmarkproto=''
?*) echo " "
echo "Checking if your compiler accepts -pipe" 2>&1
echo 'int main(void) { return 0; }' > gcctest.c
- if $cc -O2 -pipe -o gcctest gcctest.c; then
+ if $cc -pipe -o gcctest gcctest.c; then
echo "Yes, it does." 2>&1
case "$ccflags" in
*-pipe*)
else
echo "Nope, it doesn't, but that's ok." 2>&1
fi
+
+ echo "Checking if your compiler accepts -Wdeclaration-after-statement" 2>&1
+ echo 'int main(void) { return 0; }' > gcctest.c
+ if $cc -Wdeclaration-after-statement -o gcctest gcctest.c; then
+ echo "Yes, it does." 2>&1
+ case "$ccflags" in
+ *-Wdeclaration-after-statement*)
+ echo "Leaving current flags $ccflags alone." 2>&1
+ ;;
+ *) dflt="$dflt -Wdeclaration-after-statement" ;;
+ esac
+ else
+ echo "Nope, it doesn't, but that's ok." 2>&1
+ fi
;;
esac
;;
set atoll d_atoll
eval $inlibc
-: Look for GNU-cc style attribute checking
-case "$d_attribut" in
+: Look for GCC-style attribute format
+case "$d_attribute_format" in
+'')
+echo " "
+echo "Checking whether your compiler can handle __attribute__((format)) ..." >&4
+$cat >attrib.c <<'EOCP'
+#include <stdio.h>
+void my_special_printf(char* pat,...) __attribute__((__format__(__printf__,1,2)));
+EOCP
+if $cc $ccflags -c attrib.c >attrib.out 2>&1 ; then
+ if $contains 'warning' attrib.out >/dev/null 2>&1; then
+ echo "Your C compiler doesn't support __attribute__((format))."
+ val="$undef"
+ else
+ echo "Your C compiler supports __attribute__((format))."
+ val="$define"
+ fi
+else
+ echo "Your C compiler doesn't seem to understand __attribute__ at all."
+ val="$undef"
+fi
+;;
+*) val="$d_attribute_format" ;;
+esac
+set d_attribute_format
+eval $setvar
+$rm -f attrib*
+
+: Look for GCC-style attribute malloc
+case "$d_attribute_malloc" in
'')
echo " "
-echo "Checking whether your compiler can handle __attribute__ ..." >&4
+echo "Checking whether your compiler can handle __attribute__((malloc)) ..." >&4
$cat >attrib.c <<'EOCP'
#include <stdio.h>
-void croak (char* pat,...) __attribute__((__format__(__printf__,1,2),noreturn));
+char *go_get_some_memory( int how_many_bytes ) __attribute__((malloc));
EOCP
if $cc $ccflags -c attrib.c >attrib.out 2>&1 ; then
if $contains 'warning' attrib.out >/dev/null 2>&1; then
- echo "Your C compiler doesn't fully support __attribute__."
+ echo "Your C compiler doesn't support __attribute__((malloc))."
val="$undef"
else
- echo "Your C compiler supports __attribute__."
+ echo "Your C compiler supports __attribute__((malloc))."
val="$define"
fi
else
val="$undef"
fi
;;
-*) val="$d_attribut" ;;
+*) val="$d_attribute_malloc" ;;
esac
-set d_attribut
+set d_attribute_malloc
+eval $setvar
+$rm -f attrib*
+
+: Look for GCC-style attribute nonnull
+case "$d_attribute_nonnull" in
+'')
+echo " "
+echo "Checking whether your compiler can handle __attribute__((nonnull(1))) ..." >&4
+$cat >attrib.c <<'EOCP'
+#include <stdio.h>
+void do_something (char *some_pointer,...) __attribute__((nonnull(1)));
+EOCP
+if $cc $ccflags -c attrib.c >attrib.out 2>&1 ; then
+ if $contains 'warning' attrib.out >/dev/null 2>&1; then
+ echo "Your C compiler doesn't support __attribute__((nonnull))."
+ val="$undef"
+ else
+ echo "Your C compiler supports __attribute__((nonnull))."
+ val="$define"
+ fi
+else
+ echo "Your C compiler doesn't seem to understand __attribute__ at all."
+ val="$undef"
+fi
+;;
+*) val="$d_attribute_nonnull" ;;
+esac
+set d_attribute_nonnull
+eval $setvar
+$rm -f attrib*
+
+: Look for GCC-style attribute noreturn
+case "$d_attribute_noreturn" in
+'')
+echo " "
+echo "Checking whether your compiler can handle __attribute__((noreturn)) ..." >&4
+$cat >attrib.c <<'EOCP'
+#include <stdio.h>
+void fall_over_dead( void ) __attribute__((noreturn));
+EOCP
+if $cc $ccflags -c attrib.c >attrib.out 2>&1 ; then
+ if $contains 'warning' attrib.out >/dev/null 2>&1; then
+ echo "Your C compiler doesn't support __attribute__((noreturn))."
+ val="$undef"
+ else
+ echo "Your C compiler supports __attribute__((noreturn))."
+ val="$define"
+ fi
+else
+ echo "Your C compiler doesn't seem to understand __attribute__ at all."
+ val="$undef"
+fi
+;;
+*) val="$d_attribute_noreturn" ;;
+esac
+set d_attribute_noreturn
+eval $setvar
+$rm -f attrib*
+
+: Look for GCC-style attribute pure
+case "$d_attribute_pure" in
+'')
+echo " "
+echo "Checking whether your compiler can handle __attribute__((pure)) ..." >&4
+$cat >attrib.c <<'EOCP'
+#include <stdio.h>
+int square( int n ) __attribute__((pure));
+EOCP
+if $cc $ccflags -c attrib.c >attrib.out 2>&1 ; then
+ if $contains 'warning' attrib.out >/dev/null 2>&1; then
+ echo "Your C compiler doesn't support __attribute__((pure))."
+ val="$undef"
+ else
+ echo "Your C compiler supports __attribute__((pure))."
+ val="$define"
+ fi
+else
+ echo "Your C compiler doesn't seem to understand __attribute__ at all."
+ val="$undef"
+fi
+;;
+*) val="$d_attribute_pure" ;;
+esac
+set d_attribute_pure
+eval $setvar
+$rm -f attrib*
+
+: Look for GCC-style attribute unused
+case "$d_attribute_unused" in
+'')
+echo " "
+echo "Checking whether your compiler can handle __attribute__((unused)) ..." >&4
+$cat >attrib.c <<'EOCP'
+#include <stdio.h>
+int do_something( int dummy __attribute__((unused)), int n );
+EOCP
+if $cc $ccflags -c attrib.c >attrib.out 2>&1 ; then
+ if $contains 'warning' attrib.out >/dev/null 2>&1; then
+ echo "Your C compiler doesn't support __attribute__((unused))."
+ val="$undef"
+ else
+ echo "Your C compiler supports __attribute__((unused))."
+ val="$define"
+ fi
+else
+ echo "Your C compiler doesn't seem to understand __attribute__ at all."
+ val="$undef"
+fi
+;;
+*) val="$d_attribute_unused" ;;
+esac
+set d_attribute_unused
+eval $setvar
+$rm -f attrib*
+
+: Look for GCC-style attribute warn_unused_result
+case "$d_attribute_warn_unused_result" in
+'')
+echo " "
+echo "Checking whether your compiler can handle __attribute__((warn_unused_result)) ..." >&4
+$cat >attrib.c <<'EOCP'
+#include <stdio.h>
+int I_will_not_be_ignored(void) __attribute__((warn_unused_result));
+EOCP
+if $cc $ccflags -c attrib.c >attrib.out 2>&1 ; then
+ if $contains 'warning' attrib.out >/dev/null 2>&1; then
+ echo "Your C compiler doesn't support __attribute__((warn_unused_result))."
+ val="$undef"
+ else
+ echo "Your C compiler supports __attribute__((warn_unused_result))."
+ val="$define"
+ fi
+else
+ echo "Your C compiler doesn't seem to understand __attribute__ at all."
+ val="$undef"
+fi
+;;
+*) val="$d_attribute_warn_unused_result" ;;
+esac
+set d_attribute_warn_unused_result
eval $setvar
$rm -f attrib*
eval $setvar
$rm -f try.c try
-
-d_sitecustomize="$undef"
-case "$usesitecustomize" in
- $define|true|[Yy]*)
- usesitecustomize="$define"
- d_sitecustomize="$define"
- ;;
- *)
- usesitecustomize="$undef"
- esac
-
: see if sockatmark exists
set sockatmark d_sockatmark
eval $inlibc
;;
esac
+
+case "$usesitecustomize" in
+ $define|true|[Yy]*)
+ usesitecustomize="$define"
+ ;;
+ *)
+ usesitecustomize="$undef"
+ ;;
+ esac
+
: determine compiler compiler
case "$yacc" in
'')
d_asctime_r='$d_asctime_r'
d_atolf='$d_atolf'
d_atoll='$d_atoll'
-d_attribut='$d_attribut'
+d_attribute_format='$d_attribute_format'
+d_attribute_malloc='$d_attribute_malloc'
+d_attribute_nonnull='$d_attribute_nonnull'
+d_attribute_noreturn='$d_attribute_noreturn'
+d_attribute_pure='$d_attribute_pure'
+d_attribute_unused='$d_attribute_unused'
+d_attribute_warn_unused_result='$d_attribute_warn_unused_result'
d_bcmp='$d_bcmp'
d_bcopy='$d_bcopy'
d_bsd='$d_bsd'
d_sigaction='$d_sigaction'
d_sigprocmask='$d_sigprocmask'
d_sigsetjmp='$d_sigsetjmp'
-d_sitecustomize='$d_sitecustomize'
d_sockatmark='$d_sockatmark'
d_sockatmarkproto='$d_sockatmarkproto'
d_socket='$d_socket'
projects / p5sagit/p5-mst-13.2.git / blobdiff