51 lines
1.8 KiB
Diff
51 lines
1.8 KiB
Diff
From 7faf8eda1358f8a877b9b3d6e1197b814e80b50b Mon Sep 17 00:00:00 2001
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Message-Id: <7faf8eda1358f8a877b9b3d6e1197b814e80b50b.1566557361.git.pmatilai@redhat.com>
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From: Panu Matilainen <pmatilai@redhat.com>
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Date: Tue, 13 Aug 2019 16:26:31 +0300
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Subject: [PATCH] Drop %_lto_cflags macro afterall
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This was only added in commit 2bb7b0cf066c97a9d92eb0bf59618896000cb29d,
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but turns out that this kind of usage is bad for build reproducability
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because the system-specific CPU count gets recorded RPMTAG_OPTFLAGS
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and the resulting binaries too (depending on gcc flags).
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In addition, gcc upstream has decided to make -flto default to
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autodetected parallelism. Since -flto can be overridden with
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by simply appending -fno-lto for the packages that need to disable it,
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there's no practical need for us to provide such a macro for disabling
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either.
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---
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macros.in | 2 +-
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platform.in | 3 ---
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2 files changed, 1 insertion(+), 4 deletions(-)
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diff --git a/macros.in b/macros.in
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index 633d5ca6e..b7da4ea2f 100644
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--- a/macros.in
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+++ b/macros.in
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@@ -1025,7 +1025,7 @@ package or when debugging this package.\
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%build_fflags %{optflags} %{?_fmoddir:-I%{_fmoddir}}
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# Link editor flags. This is usually called LDFLAGS in makefiles.
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-#%build_ldflags -Wl,-z,relro %{?_lto_cflags}
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+#%build_ldflags -Wl,-z,relro
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# Expands to shell code to seot the compiler/linker environment
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# variables CFLAGS, CXXFLAGS, FFLAGS, FCFLAGS, LDFLAGS if they have
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diff --git a/platform.in b/platform.in
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index e1efc42b0..db6d2382f 100644
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--- a/platform.in
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+++ b/platform.in
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@@ -59,9 +59,6 @@
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%_smp_mflags -j%{_smp_build_ncpus}
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-# Enable LTO optimization with a maximal parallelism
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-%_lto_cflags -flto=%{_smp_build_ncpus}
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-
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#==============================================================================
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# ---- Build policy macros.
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#
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--
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2.21.0
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