36 lines
1.2 KiB
Diff
36 lines
1.2 KiB
Diff
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Source: https://src.fedoraproject.org/rpms/dia/blob/7ebdbadff67fe2ee482d8655fcb3d361b31742f3/f/dia-configure-c99.patch
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C99 removes support for implicit ints, so declare the return type
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of main explicitly. Future compilers are likely to require explicit
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type declarations.
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Upstream has switched to Meson, and it does not seem to use this
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particular check anymore.
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diff --git a/configure b/configure
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index 14cdc757c3ee0f15..504ae93d8e3a4f48 100755
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--- a/configure
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+++ b/configure
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@@ -17571,7 +17571,7 @@ $as_echo_n "checking for png_structp in png.h... " >&6; }
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png_structp pp;
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png_infop info;
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png_colorp cmap;
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- main() { void*foo = png_create_read_struct; }
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+ int main(void) { void*foo = png_create_read_struct; }
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_ACEOF
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if ac_fn_c_try_link "$LINENO"; then :
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png_ok=yes
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diff --git a/configure.in b/configure.in
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index c5edeeddf766d5fb..f90ed4ef953af139 100644
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--- a/configure.in
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+++ b/configure.in
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@@ -197,7 +197,7 @@ if test "$png_ok" = yes; then
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png_structp pp;
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png_infop info;
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png_colorp cmap;
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- main() { void*foo = png_create_read_struct; }],
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+ int main(void) { void*foo = png_create_read_struct; }],
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png_ok=yes,
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png_ok=no)
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LDFLAGS="${old_LDFLAGS}"
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