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15 lines
413 B
15 lines
413 B
--- a/am/ax_compile_check_rettype.m4
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+++ b/am/ax_compile_check_rettype.m4
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@@ -70,6 +70,9 @@ AC_CACHE_VAL(AC_CV_NAME,
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[for ac_type in char short int long "long long" $4
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do
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AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
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+#ifdef HAVE_SYS_SYSMACROS_H
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+#include <sys/sysmacros.h>
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+#endif
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#include <sys/types.h>
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$3
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]], [[switch (0) case 0: case (sizeof ($1($2)) == sizeof ($ac_type)):;]])], [AC_CV_NAME=$ac_type])
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