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enscript currently fails to build with musl with gcc >= 15. In order to fix this, we need to bring a number of patches from upstream, and add 2 others that were submitted upstream. From upstream, we bring 0002-Add-CFLAG-std-c89-so-it-compiles-with-the-old-standa.patch, which switches to -std=c89 to get the compiler back to "old" behavior. However, as this commit patches configure.ac, we need to autoreconf, but autoreconf is broken, so we also take 0003-Automake-1.12-and-up-no-longer-supports-pre-ANSI.patch from upstream, which drops a problematic autoconf macro. However, once you drop this problematic autoconf macro, the PROTOTYPES define is never set by anything, causing the __P macro to no longer be defined properly. This is fixed by 0004-Fix-prototype-detection-when-__STDC__-is-defined-but.patch that we have submitted upstream. Once you're there, you realize that switching to -std=c89 has the side effect that musl's <limits.h> no longer defines PATH_MAX, because it needs one of: #if defined(_POSIX_SOURCE) || defined(_POSIX_C_SOURCE) \ || defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) || defined(_BSD_SOURCE) and a side effect of -std=c89 is that none of these is defined anymore. So we introduce 0005-Use-std-gnu89-instead-of-std-c89.patch, which switches to -std=gnu89. This patch has also been submitted upstream. With all of these efforts, we get a successful build on musl with gcc >= 15. This commit needs to be backported to Buildroot versions that support gcc 15.x, so that means the currently maintained 2026.x branches, but not 2025.02 as only up to gcc 14.x was supported then. Fixes: https://autobuild.buildroot.org/results/d39d14bbbb3a51d67fe962b877c7f66ff1204ecf/ Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com> Signed-off-by: Julien Olivain <ju.o@free.fr>
29 lines
782 B
Diff
29 lines
782 B
Diff
From d74ef70aec3fe9e5e27468f31532eb41188707cf Mon Sep 17 00:00:00 2001
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From: Werner Fink <werner@suse.de>
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Date: Tue, 23 Jan 2018 15:26:45 +0100
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Subject: [PATCH] Automake 1.12 and up no longer supports pre-ANSI
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Signed-off-by: Werner Fink <werner@suse.de>
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Signed-off-by: James Cloos <cloos@jhcloos.com>
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Upstream: https://git.savannah.gnu.org/cgit/enscript.git/commit/?id=a356d343aa9db52b75432cde927b6f9bad6a7c44
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Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
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---
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configure.ac | 1 -
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1 file changed, 1 deletion(-)
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diff --git a/configure.ac b/configure.ac
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index b867912..4431cb1 100644
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--- a/configure.ac
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+++ b/configure.ac
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@@ -14,7 +14,6 @@ AC_PROG_CC
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CFLAGS="$CFLAGS -std=c89"
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AC_USE_SYSTEM_EXTENSIONS
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-AM_C_PROTOTYPES
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AC_C_CONST
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AC_FUNC_ALLOCA
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--
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2.55.0
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