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44 lines
1.4 KiB
Diff
44 lines
1.4 KiB
Diff
From 80d086357a55b94a13e43756cf3e131f25eef0e4 Mon Sep 17 00:00:00 2001
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From: Sam James <sam@gentoo.org>
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Date: Mon, 28 Mar 2022 08:40:45 +0100
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Subject: [PATCH] Fix CC logic in configure
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In https://github.com/madler/zlib/commit/e9a52aa129efe3834383e415580716a7c4027f8d,
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the logic was changed to try check harder for GCC, but it dropped
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the default setting of cc=${CC}. It was throwing away any pre-set CC value as
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a result.
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The rest of the script then cascades down a bad path because it's convinced
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it's not GCC or a GCC-like compiler.
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This led to e.g. misdetection of inability to build shared libs
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for say, multilib cases (w/ CC being one thing from the environment being used
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for one test (e.g. x86_64-unknown-linux-gnu-gcc -m32 and then 'cc' used for
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shared libs (but missing "-m32"!)). Obviously just one example of how
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the old logic could break.
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This restores the old default of 'CC' if nothing overrides it later
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in configure.
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Bug: https://bugs.gentoo.org/836308
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Signed-off-by: Sam James <sam@gentoo.org>
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---
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configure | 3 +++
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1 file changed, 3 insertions(+)
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diff --git a/configure b/configure
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index 52ff4a04e..3fa3e8618 100755
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--- a/configure
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+++ b/configure
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@@ -174,7 +174,10 @@ if test -z "$CC"; then
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else
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cc=${CROSS_PREFIX}cc
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fi
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+else
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+ cc=${CC}
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fi
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+
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cflags=${CFLAGS-"-O3"}
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# to force the asm version use: CFLAGS="-O3 -DASMV" ./configure
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case "$cc" in
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