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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 /INSTALL
parent93a2584cd2ffb2a6e4b17682ba250889059f5d8b (diff)
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Add --with-nonshared-cflags option to configure
Diffstat (limited to 'INSTALL')
-rw-r--r--INSTALL16
1 files changed, 16 insertions, 0 deletions
diff --git a/INSTALL b/INSTALL
index 603b23b5e2d..4faeac4469f 100644
--- a/INSTALL
+++ b/INSTALL
@@ -90,6 +90,22 @@ if 'CFLAGS' is specified it must enable optimization. For example:
library will still be usable, but functionality may be lost--for
example, you can't build a shared libc with old binutils.
+'--with-nonshared-cflags=CFLAGS'
+ Use additional compiler flags 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 '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,
+ '--with-nonshared-cflags=-Wp,-D_FORTIFY_SOURCE=2' will make sure
+ that the objects in '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).
+
'--disable-shared'
Don't build shared libraries even if it is possible. Not all
systems support shared libraries; you need ELF support and