gcc15 does not like implicit int. These ports fail because the configure
scripts think 'main()' is good enough.
Fixing this is trivial and we already patch up most of those scripts for
other reasons.
This is just the tip of the Wimplicit-int iceberg but this is a start.
--
:wq Claudio
Index: devel/cgdb/patches/patch-config_readline_check_version_m4
===================================================================
RCS file: /cvs/ports/devel/cgdb/patches/patch-config_readline_check_version_m4,v
diff -u -p -r1.2 patch-config_readline_check_version_m4
--- devel/cgdb/patches/patch-config_readline_check_version_m4 1 Mar 2022
13:43:33 -0000 1.2
+++ devel/cgdb/patches/patch-config_readline_check_version_m4 4 Dec 2025
12:39:08 -0000
@@ -10,3 +10,12 @@ Index: config/readline_check_version.m4
CFLAGS="$CFLAGS -I${ac_cv_rl_includedir}"
LDFLAGS="$LDFLAGS -L${ac_cv_rl_libdir}"
+@@ -86,7 +86,7 @@ AC_CACHE_VAL(ac_cv_rl_version,
+ #include <stdlib.h>
+ #include <readline/readline.h>
+
+-main()
++int main()
+ {
+ FILE *fp;
+ fp = fopen("conftest.rlv", "w");
Index: devel/sdlmm/patches/patch-configure
===================================================================
RCS file: /cvs/ports/devel/sdlmm/patches/patch-configure,v
diff -u -p -r1.2 patch-configure
--- devel/sdlmm/patches/patch-configure 11 Mar 2022 18:53:25 -0000 1.2
+++ devel/sdlmm/patches/patch-configure 4 Dec 2025 12:39:08 -0000
@@ -1,5 +1,15 @@
---- configure.orig Mon Aug 13 21:39:00 2001
-+++ configure Sun Feb 5 11:36:41 2006
+Index: configure
+--- configure.orig
++++ configure
+@@ -1178,7 +1178,7 @@ cat > conftest.$ac_ext << EOF
+ #line 1179 "configure"
+ #include "confdefs.h"
+
+-main(){return(0);}
++int main(){return(0);}
+ EOF
+ if { (eval echo configure:1184: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }
&& test -s conftest${ac_exeext}; then
+ ac_cv_prog_cc_works=yes
@@ -5876,7 +5876,6 @@ fi
echo "$ac_t""no" 1>&6
fi
Index: devel/smpeg/patches/patch-configure
===================================================================
RCS file: /cvs/ports/devel/smpeg/patches/patch-configure,v
diff -u -p -r1.4 patch-configure
--- devel/smpeg/patches/patch-configure 11 Mar 2022 18:53:27 -0000 1.4
+++ devel/smpeg/patches/patch-configure 4 Dec 2025 12:39:08 -0000
@@ -1,5 +1,15 @@
---- configure.orig Sat Jan 7 17:32:32 2012
-+++ configure Sat Jan 7 17:33:52 2012
+Index: configure
+--- configure.orig
++++ configure
+@@ -1055,7 +1055,7 @@ cat > conftest.$ac_ext << EOF
+ #line 1056 "configure"
+ #include "confdefs.h"
+
+-main(){return(0);}
++int main(){return(0);}
+ EOF
+ if { (eval echo configure:1061: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }
&& test -s conftest${ac_exeext}; then
+ ac_cv_prog_cc_works=yes
@@ -2001,9 +2001,10 @@ else
cat > conftest.$ac_ext <<EOF
#line 2003 "configure"
Index: textproc/clo++/patches/patch-configure
===================================================================
RCS file: /cvs/ports/textproc/clo++/patches/patch-configure,v
diff -u -p -r1.2 patch-configure
--- textproc/clo++/patches/patch-configure 19 May 2017 23:17:24 -0000
1.2
+++ textproc/clo++/patches/patch-configure 4 Dec 2025 12:39:08 -0000
@@ -1,6 +1,15 @@
Index: configure
--- configure.orig
+++ configure
+@@ -906,7 +906,7 @@ cat > conftest.$ac_ext << EOF
+ #line 907 "configure"
+ #include "confdefs.h"
+
+-main(){return(0);}
++int main(){return(0);}
+ EOF
+ if { (eval echo configure:912: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } &&
test -s conftest${ac_exeext}; then
+ ac_cv_prog_cc_works=yes
@@ -1234,11 +1234,11 @@ fi
XML_CONFIG_ERROR="
*** You need to have libxml2 installed to use clo++
