[v1] meson: use b_staticpic=false for meson >=0.56.0

[PATCH for-5.2] meson: use b_staticpic=false for meson >=0.56.0

Paolo Bonzini posted 1 patch 3 years, 6 months ago

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git fetch https://github.com/patchew-project/qemu tags/patchew/20201103083139.18634-1-pbonzini@redhat.com

configure   | 6 +++++-
meson.build | 4 ++--
2 files changed, 7 insertions(+), 3 deletions(-)

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[PATCH for-5.2] meson: use b_staticpic=false for meson >=0.56.0

Posted by Paolo Bonzini 3 years, 6 months ago

Meson 0.56.0 correctly builds non-PIC static libraries with -fPIE if
b_pie=true.  We do not have to pass b_staticpic=true if PIE is requested
if Meson is new-enough, which improves performance.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 configure   | 6 +++++-
 meson.build | 4 ++--
 2 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/configure b/configure
index 6df4306c88..b9a3984365 100755
--- a/configure
+++ b/configure
@@ -6953,6 +6953,10 @@ fi
 mv $cross config-meson.cross
 
 rm -rf meson-private meson-info meson-logs
+unset staticpic
+if ! version_ge "$($meson --version)" 0.56.0; then
+  staticpic=$(if test "$pie" = yes; then echo true; else echo false; fi)
+fi
 NINJA=$ninja $meson setup \
         --prefix "$prefix" \
         --libdir "$libdir" \
@@ -6972,7 +6976,7 @@ NINJA=$ninja $meson setup \
         -Dwerror=$(if test "$werror" = yes; then echo true; else echo false; fi) \
         -Dstrip=$(if test "$strip_opt" = yes; then echo true; else echo false; fi) \
         -Db_pie=$(if test "$pie" = yes; then echo true; else echo false; fi) \
-        -Db_staticpic=$(if test "$pie" = yes; then echo true; else echo false; fi) \
+        ${staticpic:+-Db_staticpic=$staticpic} \
         -Db_coverage=$(if test "$gcov" = yes; then echo true; else echo false; fi) \
         -Dmalloc=$malloc -Dmalloc_trim=$malloc_trim -Dsparse=$sparse \
         -Dkvm=$kvm -Dhax=$hax -Dwhpx=$whpx -Dhvf=$hvf \
diff --git a/meson.build b/meson.build
index 47e32e1fcb..205ba6b6f8 100644
--- a/meson.build
+++ b/meson.build
@@ -1,6 +1,6 @@
 project('qemu', ['c'], meson_version: '>=0.55.0',
-        default_options: ['warning_level=1', 'c_std=gnu99', 'cpp_std=gnu++11',
-                          'b_colorout=auto'],
+        default_options: ['warning_level=1', 'c_std=gnu99', 'cpp_std=gnu++11', 'b_colorout=auto'] +
+                         (meson.version().version_compare('>=0.56.0') ? [ 'b_staticpic=false' ] : []),
         version: run_command('head', meson.source_root() / 'VERSION').stdout().strip())
 
 not_found = dependency('', required: false)
-- 
2.26.2