Hello,
this trivial patch fixes ./configure CFLAGS="-Wall -Werror".
Cheers,
Giuseppe
>From 2323115d8b432eb85d5341da6664215ad75cda9a Mon Sep 17 00:00:00 2001
From: Giuseppe Scrivano <gscriv...@gnu.org>
Date: Sat, 13 Feb 2010 22:38:59 +0100
Subject: [PATCH] Fix configure when CFLAGS="-Wall -Werror" is specified.
---
src/configure.in | 68 ++++++++++++++++++++++++++++++++++++++++++-----------
1 files changed, 54 insertions(+), 14 deletions(-)
diff --git a/src/configure.in b/src/configure.in
index 8c5762c..b1ed5d9 100644
--- a/src/configure.in
+++ b/src/configure.in
@@ -47,7 +47,7 @@ AC_PROG_GCC_TRADITIONAL
AC_ISC_POSIX
AC_USE_SYSTEM_EXTENSIONS
-AC_TRY_RUN(main(){exit(0);},,[
+AC_TRY_RUN(extern void exit (int);int main(){exit(0);return 0;},,[
if test $CC != cc ; then
AC_NOTE(Your $CC failed - restarting with CC=cc)
AC_NOTE()
@@ -57,7 +57,7 @@ exec $0 $configure_args
fi
])
-AC_TRY_RUN(main(){exit(0);},,
+AC_TRY_RUN(extern void exit (int);int main(){exit(0); return 0;},,
exec 5>&2
eval $ac_link
AC_NOTE(CC=$CC; CFLAGS=$CFLAGS; LIBS=$LIBS;)
@@ -289,11 +289,11 @@ dnl **** select() ****
dnl
AC_CHECKING(select)
-AC_TRY_LINK(,[select(0, 0, 0, 0, 0);],,
-LIBS="$LIBS -lnet -lnsl"
+AC_CHECK_FUNCS([select],,
+[LIBS="$LIBS -lnet -lnsl"
AC_CHECKING(select with $LIBS)
-AC_TRY_LINK(,[select(0, 0, 0, 0, 0);],,
-AC_MSG_ERROR(!!! no select - no screen))
+AC_CHECK_FUNCS([select],,
+AC_MSG_ERROR(!!! no select - no screen))]
)
dnl
dnl **** FIFO tests ****
@@ -320,7 +320,8 @@ AC_TRY_RUN([
#endif
char *fin = "/tmp/conftest$$";
-
+extern void exit (int);
+int
main()
{
struct stat stb;
@@ -363,6 +364,7 @@ main()
if (select(1, &f, 0, 0, 0) == -1)
exit(1);
exit(0);
+ return 0;
}
], AC_NOTE(- your fifos are usable) fifo=1,
AC_NOTE(- your fifos are not usable))
@@ -388,9 +390,10 @@ AC_TRY_RUN([
#ifndef S_IFIFO
#define S_IFIFO 0010000
#endif
-
+extern void exit (int);
char *fin = "/tmp/conftest$$";
+int
main()
{
struct timeval tv;
@@ -411,6 +414,7 @@ main()
if (select(1, &f, 0, 0, &tv))
exit(1);
exit(0);
+ return 0;
}
], AC_NOTE(- your implementation is ok),
AC_NOTE(- you have a broken implementation) AC_DEFINE(BROKEN_PIPE) fifobr=1)
@@ -438,8 +442,11 @@ AC_TRY_RUN([
#include <sys/socket.h>
#include <sys/un.h>
+extern void exit (int);
+
char *son = "/tmp/conftest$$";
+int
main()
{
int s1, s2, l;
@@ -473,6 +480,7 @@ main()
if (select(1, &f, 0, 0, 0) == -1)
exit(1);
exit(0);
+ return 0;
}
], AC_NOTE(- your sockets are usable) sock=1,
AC_NOTE(- your sockets are not usable))
@@ -493,8 +501,11 @@ AC_TRY_RUN([
#include <sys/socket.h>
#include <sys/un.h>
+extern void exit (int);
+
char *son = "/tmp/conftest$$";
+int
main()
{
int s;
@@ -511,6 +522,7 @@ main()
exit(1);
close(s);
exit(0);
+ return 0;
}
],AC_NOTE(- you are normal),
AC_NOTE(- unix domain sockets are not kept in the filesystem)
@@ -561,6 +573,8 @@ AC_TRY_RUN([
char *nam = "/tmp/conftest$$";
+extern void exit (int);
+
#ifdef NAMEDPIPE
#ifndef O_NONBLOCK
@@ -570,7 +584,10 @@ char *nam = "/tmp/conftest$$";
#define S_IFIFO 0010000
#endif
+extern void exit (int);
+
+int
main()
{
fd_set f;
@@ -639,6 +656,7 @@ main()
if (select(1, &f, &f, 0, 0) != 2)
exit(1);
exit(0);
+ return 0;
}
],AC_NOTE(- select is ok),
AC_NOTE(- select can't count) AC_DEFINE(SELECT_BROKEN))
@@ -655,27 +673,31 @@ AC_TRY_LINK(,[
#ifdef __hpux
__sorry_hpux_libcurses_is_totally_broken_in_10_10();
#else
+extern void tgetent (char*, char*);
tgetent((char *)0, (char *)0);
#endif
],,
LIBS="-ltermcap $olibs"
AC_CHECKING(libtermcap)
-AC_TRY_LINK(,tgetent((char *)0, (char *)0);,,
+AC_TRY_LINK(,extern void tgetent (char*, char*); tgetent((char *)0, (char
*)0);,,
LIBS="-ltermlib $olibs"
AC_CHECKING(libtermlib)
-AC_TRY_LINK(,tgetent((char *)0, (char *)0);,,
+AC_TRY_LINK(,extern void tgetent (char*, char*); tgetent((char *)0, (char
*)0);,,
LIBS="-lncursesw $olibs"
AC_CHECKING(libncursesw)
-AC_TRY_LINK(,tgetent((char *)0, (char *)0);,,
+AC_TRY_LINK(,extern void tgetent (char*, char*); tgetent((char *)0, (char
*)0);,,
LIBS="-lncurses $olibs"
AC_CHECKING(libncurses)
-AC_TRY_LINK(,tgetent((char *)0, (char *)0);,,
+AC_TRY_LINK(,extern void tgetent (char*, char*); tgetent((char *)0, (char
*)0);,,
AC_MSG_ERROR(!!! no tgetent - no screen)))))))
AC_TRY_RUN([
+extern void exit (int);
+int
main()
{
- exit(strcmp(tgoto("%p1%d", 0, 1), "1") ? 0 : 1);
+ exit(strcmp(tgoto("%p1%d", 0, 1), "1") ? 0 : 1);
+ return 0;
}], AC_NOTE(- you use the termcap database),
AC_NOTE(- you use the terminfo database) AC_DEFINE(TERMINFO))
AC_CHECKING(ospeed)
@@ -745,6 +767,9 @@ AC_TRY_RUN([
#include <sys/types.h>
#include <sys/stat.h>
#include <stdio.h>
+extern void exit (int);
+
+int
main()
{
struct stat sb;
@@ -768,6 +793,7 @@ main()
fprintf(fp, "%d\n", sb.st_gid);
fclose(fp);
exit(0);
+ return 0;
}
],[
if test -f conftest_grp; then
@@ -940,6 +966,9 @@ $nlist64
struct nlist nl[2];
+extern void exit (int);
+
+int
main()
{
#if !defined(_AUX_SOURCE) && !defined(AUX)
@@ -955,6 +984,7 @@ main()
if (nl[0].n_value == 0)
exit(1);
exit(0);
+ return 0;
}
],avensym=$av;break)
if test "$av" = _Loadavg; then
@@ -1077,6 +1107,7 @@ hand()
got++;
}
+int
main()
{
/* on hpux we use sigvec to get bsd signals */
@@ -1088,6 +1119,7 @@ main()
exit(1);
#endif
exit(0);
+ return 0;
}
],,AC_DEFINE(SYSVSIGS))
@@ -1158,6 +1190,9 @@ AC_TRY_LINK([#include <stdlib.h>], [fdwalk(NULL,
NULL);],AC_DEFINE(HAVE_FDWALK))
AC_CHECKING(whether memcpy/memmove/bcopy handles overlapping arguments)
AC_TRY_RUN([
+extern void exit (int);
+
+int
main() {
char buf[10];
strcpy(buf, "abcdefghi");
@@ -1169,10 +1204,12 @@ main() {
if (strncmp(buf, "cdedef", 6))
exit(1);
exit(0); /* libc version works properly. */
+ return 0;
}], AC_DEFINE(USEBCOPY))
AC_TRY_RUN([
#define bcopy(s,d,l) memmove(d,s,l)
+int
main() {
char buf[10];
strcpy(buf, "abcdefghi");
@@ -1184,11 +1221,13 @@ main() {
if (strncmp(buf, "cdedef", 6))
exit(1);
exit(0); /* libc version works properly. */
+ return 0;
}], AC_DEFINE(USEMEMMOVE))
AC_TRY_RUN([
#define bcopy(s,d,l) memcpy(d,s,l)
+int
main() {
char buf[10];
strcpy(buf, "abcdefghi");
@@ -1200,6 +1239,7 @@ main() {
if (strncmp(buf, "cdedef", 6))
exit(1);
exit(0); /* libc version works properly. */
+ return 0;
}], AC_DEFINE(USEMEMCPY))
AC_SYS_LONG_FILE_NAMES
@@ -1286,7 +1326,7 @@ fi
dnl Ptx bug workaround -- insert -lc after -ltermcap
test -n "$seqptx" && LIBS="-ltermcap -lc -lsocket -linet -lnsl -lsec -lseq"
-AC_TRY_RUN(main(){exit(0);},,AC_MSG_ERROR(Can't run the compiler - internal
error. Sorry.))
+AC_TRY_RUN(extern void exit (int);int main(){exit(0); return
0;},,AC_MSG_ERROR(Can't run the compiler - internal error. Sorry.))
AC_OUTPUT(Makefile doc/Makefile, [[
# a hook for preserving undef directive in config.h
--
1.6.6.1
