From f97f6668da9c8c5fd39232ab17ae432f9246197e Mon Sep 17 00:00:00 2001
From: Dennis Eisele <kernlpanic@dennis-eisele.de>
Date: Thu, 17 Apr 2025 12:39:02 +0200
Subject: [PATCH] fix implicit int and implicit declarations

This patch adapts a patch originally written by Florian Weimer
<fweimer@redhat.com> to fix implicit int and function declarations.

Gentoo-Bug-URL: https://bugs.gentoo.org/906537

Signed-off-by: Dennis Eisele <kernlpanic@dennis-eisele.de>
---
 configure.sh | 33 ++++++++++++++++++++++++---------
 1 file changed, 24 insertions(+), 9 deletions(-)

diff --git a/configure.sh b/configure.sh
index a1ae153..8aa74c0 100755
--- a/configure.sh
+++ b/configure.sh
@@ -4244,6 +4244,8 @@ else
 
 #define _FILE_OFFSET_BITS 64
 #include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
 #include <fcntl.h>
 #include <sys/types.h>
 #include <sys/wait.h>
@@ -5382,6 +5384,7 @@ if ${ac_cv_header_sys_types_h_makedev+:} false; then :
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
+#include <sys/sysmacros.h>
 #include <sys/types.h>
 int
 main ()
@@ -5438,7 +5441,9 @@ else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
+#include <stdlib.h>
 #include <sys/types.h>
+#include <sys/sysmacros.h>
 #ifdef MAJOR_IN_MKDEV
 #include <sys/mkdev.h>
 # if !defined makedev && (defined mkdev || defined _WIN32 || defined __WIN32__)
@@ -7573,7 +7578,7 @@ else
 #endif
 #include <stdlib.h>
 #include <errno.h>
-    main() {
+    int main() {
 	char const *dangling_symlink = "conftest.dangle";
 	unlink(dangling_symlink);
 	if (symlink("conftest.no-such", dangling_symlink) < 0) abort();
@@ -7617,7 +7622,7 @@ else
 #include <stdlib.h>
 #include <errno.h>
 #define FILENAME "conftest.dangle"
-    main() {
+    int main(void) {
 	unlink(FILENAME);
 	if (symlink("conftest.no-such", FILENAME) < 0) abort();
 	if (link(FILENAME, FILENAME "2") < 0) exit(1);
@@ -7659,8 +7664,9 @@ else
 #endif
 #include <stdlib.h>
 #include <errno.h>
+#include <sys/stat.h>
 #define FILENAME "conftest.fifi"
-    main() {
+    int main() {
 	unlink(FILENAME);
 	if (mkfifo(FILENAME, 0777) < 0) abort();
 	if (link(FILENAME, FILENAME "2") < 0) exit(1);
@@ -7699,8 +7705,9 @@ else
 
 #include <sys/types.h>
 #include <sys/socket.h>
+#include <stdlib.h>
 
-main() {
+int main(void) {
        int fd[2];
 #ifdef __CYGWIN__
        exit(1);
@@ -7850,7 +7857,8 @@ else
 /* end confdefs.h.  */
 #include <sys/types.h>
 #include <dirent.h>
-main() { struct dirent *di; DIR *d = opendir("."); di = readdir(d);
+#include <stdlib.h>
+int main(void) { struct dirent *di; DIR *d = opendir("."); di = readdir(d);
 if (di && di->d_name[-2] == '.' && di->d_name[-1] == 0 &&
 di->d_name[0] == 0) exit(0); exit(1);}
 _ACEOF
@@ -7882,6 +7890,7 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <sys/types.h>
 #include <utime.h>
+#include <stdlib.h>
 int
 main ()
 {
@@ -7915,6 +7924,7 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <sys/time.h>
 #include <unistd.h>
+#include <stdlib.h>
 int
 main ()
 {
@@ -7952,6 +7962,9 @@ else
 
 #include <sys/types.h>
 #include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
 void foo(const char *format, ...) {
        va_list ap;
        int len;
@@ -7966,7 +7979,7 @@ void foo(const char *format, ...) {
 
        exit(0);
 }
-main() { foo("hello"); }
+int main(void) { foo("hello"); }
 
 _ACEOF
 if ac_fn_c_try_run "$LINENO"; then :
@@ -8003,7 +8016,7 @@ else
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <unistd.h>
-main() {
+int main(void) {
   struct stat st;
   char tpl[20]="/tmp/test.XXXXXX";
   int fd = mkstemp(tpl);
@@ -8056,7 +8069,8 @@ else
 #include <stdio.h>
 #include <sys/stat.h>
 #include <errno.h>
-main() { int rc, ec; char *fn = "fifo-test";
+#include <unistd.h>
+int main(void) { int rc, ec; char *fn = "fifo-test";
 unlink(fn); rc = mknod(fn,S_IFIFO,0600); ec = errno; unlink(fn);
 if (rc) {printf("(%d %d) ",rc,ec); return ec;}
 return 0;}
@@ -8094,7 +8108,8 @@ else
 #include <stdio.h>
 #include <sys/stat.h>
 #include <errno.h>
-main() { int rc, ec; char *fn = "sock-test";
+#include <unistd.h>
+int main(void) { int rc, ec; char *fn = "sock-test";
 unlink(fn); rc = mknod(fn,S_IFSOCK,0600); ec = errno; unlink(fn);
 if (rc) {printf("(%d %d) ",rc,ec); return ec;}
 return 0;}
-- 
2.49.0