From 9173a3082f019f78b02efe8c0642a88e36b7bd44 Mon Sep 17 00:00:00 2001
From: Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl>
Date: Tue, 12 Nov 2013 19:02:28 -0500
Subject: build-sys: parallelize 'exported' target

---
 .gitignore  | 1 +
 Makefile.am | 9 +++++----
 2 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/.gitignore b/.gitignore
index eeb373f320..458cea56d7 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,6 +2,7 @@
 /defined
 /undefined
 /exported
+/exported-*
 /TAGS
 /accelerometer
 /ata_id
diff --git a/Makefile.am b/Makefile.am
index f4bfe66e52..f2d7a6977b 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -4667,10 +4667,11 @@ valgrind-tests: $(TESTS)
 	        libtool --mode=execute valgrind -q --leak-check=full --max-stackframe=4194400 --error-exitcode=55 $(builddir)/$$f ; \
 	done
 
-exported: $(lib_LTLIBRARIES)
-	$(AM_V_GEN)for f in $(lib_LTLIBRARIES:.la=.so) ; do \
-		nm -g --defined-only $(builddir)/.libs/"$$f" 2>&1 /dev/null | grep " T " | cut -d" " -f3 ; \
-	done > $@
+exported-%: %
+	$(AM_V_GEN)nm -g --defined-only $(builddir)/.libs/$(<:.la=.so) 2>&1 /dev/null | grep " T " | cut -d" " -f3 > $@
+
+exported: $(addprefix exported-, $(lib_LTLIBRARIES))
+	$(AM_V_GEN)cat $^ > $@
 
 check-api-docs: exported man
 	$(AM_V_GEN)for symbol in `cat exported` ; do \
-- 
cgit v1.2.3-54-g00ecf