1 files changed, 56 insertions, 0 deletions
diff --git a/app-office/dia/files/dia-0.97.3-configure-clang16.patch b/app-office/dia/files/dia-0.97.3-configure-clang16.patch
new file mode 100644
index 000000000000..0cf797a4ad0d
--- /dev/null
+++ b/app-office/dia/files/dia-0.97.3-configure-clang16.patch
@@ -0,0 +1,56 @@
+https://bugs.gentoo.org/874729
+https://src.fedoraproject.org/rpms/dia/blob/0a14169fc36b959598074065678e0126830317f8/f/dia-configure-c99.patch
+
+C99 removes support for implicit ints, so declare the return type
+of main explicitly.  Future compilers are likely to require explicit
+type declarations.
+
+Upstream has switched to Meson, and it does not seem to use this
+particular check anymore.
+
+https://bugs.gentoo.org/651522
+Remove the insane check for isinf(), since every sane compiler nowadays supports it.
+
+--- a/configure.in
++++ b/configure.in
+@@ -183,7 +183,7 @@
+                   png_structp pp;
+ 		  png_infop info; 
+ 		  png_colorp cmap; 
+-		  main() { void*foo = png_create_read_struct; }],
++		  int main(void) { void*foo = png_create_read_struct; }],
+                  png_ok=yes,
+                  png_ok=no)
+   LDFLAGS="${old_LDFLAGS}"
+@@ -378,28 +378,9 @@
+ 
+ dnl Platform-specific fixes.
+ dnl 
+-
+-dnl Sun Forte C provides isinf() in the unbundled -lsunmath. Solaris
+-dnl declares finite() in ieeefp.h. It's preferrable not to link 
+-dnl to -lsunmath as it's not present on all machines.
+-have_isinf=no
+-AC_CHECK_HEADERS(math.h,
+-        AC_CHECK_LIB(m,isinf,
+-                have_isinf=yes))
+-
+-if test "$have_isinf" = "no"; then
+-    AC_CHECK_HEADER(ieeefp.h,
+-             [AC_CHECK_FUNC(finite, 
+-	               AC_DEFINE(HAVE_IEEEFP_H,1,
+-		                 [Define if finite() is defined in ieeefp.h]),
+-                       AC_MSG_ERROR([Can't find a definition of neither 
+-                                     finite nor isinf]))],
+-             [AC_MSG_ERROR(Can't find neither a definition of
+-	                   isinf nor ieeefp.h)])
+-else
+-    AC_DEFINE([HAVE_ISINF], 1, 
+-              [Define if the isinf() function is available])
+-fi
++dnl every modern compiler supports C99's isinf()
++AC_DEFINE([HAVE_ISINF], 1, 
++          [Define if the isinf() function is available])
+ 
+ dnl Alpha needs -mieee or we get a segfault
+ dnl This shouldn't be needed but is here until a real solution is found