Always respect DEB_${flag}_{APPEND,SET} envvars.

[debhelper.git] / dh_auto_build

diff --git a/dh_auto_build b/dh_auto_build
index dccd04a0436a48cd6713ad19a2b0db9d573daf23..77b55eef84d5ee48d1249018e4ff402f7c2c1056 100755 (executable)
--- a/dh_auto_build
+++ b/dh_auto_build
@@ -25,6 +25,11 @@ This is intended to work for about 90% of packages. If it doesn't work,
 you're encouraged to skip using B<dh_auto_build> at all, and just run the
 build process manually.
 
+In order to override standard build flags, export appropriate environment
+variables as documented in the L<dpkg-buildflags(1)> manual page. They will be
+preferred over directly exported their counterparts (CFLAGS, CXXFLAGS, LDFLAGS
+etc.).
+
 =head1 OPTIONS
 
 See L<debhelper(7)/B<BUILD SYSTEM OPTIONS>> for a list of common build