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authorFlorian Weimer <fweimer@redhat.com>2018-08-17 11:44:39 +0200
committerFlorian Weimer <fweimer@redhat.com>2018-08-17 11:44:39 +0200
commit6413fcde4fe0272eee469aaf41c8bb1d6e6a270f (patch)
tree5d9ed44268cebf689da7fceafa88371b524a8027 /manual
parent93a2584cd2ffb2a6e4b17682ba250889059f5d8b (diff)
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Add --with-nonshared-cflags option to configure
Diffstat (limited to 'manual')
-rw-r--r--manual/install.texi14
1 files changed, 14 insertions, 0 deletions
diff --git a/manual/install.texi b/manual/install.texi
index df32b3952b..eab4b0d75a 100644
--- a/manual/install.texi
+++ b/manual/install.texi
@@ -117,6 +117,20 @@ problem and suppress these constructs, so that the library will still be
 usable, but functionality may be lost---for example, you can't build a
 shared libc with old binutils.
 
+@item --with-nonshared-cflags=@var{cflags}
+Use additional compiler flags @var{cflags} to build the parts of the
+library which are always statically linked into applications and
+libraries even with shared linking (that is, the object files contained
+in @file{lib*_nonshared.a} libraries).  The build process will
+automatically use the appropriate flags, but this option can be used to
+set additional flags required for building applications and libraries,
+to match local policy.  For example, if such a policy requires that all
+code linked into applications must be built with source fortification,
+@samp{--with-nonshared-cflags=-Wp,-D_FORTIFY_SOURCE=2} will make sure
+that the objects in @file{libc_nonshared.a} are compiled with this flag
+(although this will not affect the generated code in this particular
+case and potentially change debugging information and metadata only).
+
 @c disable static doesn't work currently
 @c @item --disable-static
 @c Don't build static libraries.  Static libraries aren't that useful these