From: Jaroslav Kysela <perex@perex.cz>
Date: Tue, 25 May 2021 14:35:23 +0000 (+0200)
Subject: include: fix out-of-source-tree build
X-Git-Tag: v1.2.5~6
X-Git-Url: https://git.alsa-project.org/?a=commitdiff_plain;h=b0e99e4cfe1e0442941c9560e0ea131c67fd3776;p=alsa-lib.git

include: fix out-of-source-tree build

Fixes:

  cd alsa-lib
  if test -r Makefile; then
    make distclean
  fi
  mkdir build
  cd build
  ../configure
  make

Note:

  The srcdir is used for the symlinks to generated include files :-(
  I've not found a better (easy) way to fix this.

Fixes: https://github.com/alsa-project/alsa-lib/issues/136
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
---

diff --git a/include/Makefile.am b/include/Makefile.am
index 45b9f67f..c7b9fc74 100644
--- a/include/Makefile.am
+++ b/include/Makefile.am
@@ -66,11 +66,18 @@ noinst_HEADERS = alsa sys.h search.h list.h aserver.h local.h alsa-symbols.h \
 
 DISTCLEANFILES = stamp-vh version.h alsa asoundlib.h
 
-alsa:
-	ln -s $(top_srcdir)/include alsa
-
-version.h: stamp-vh alsa
-	@:
+.DUMMY: alsa_link
+alsa_link:
+	if ! test -h alsa; then \
+		ln -s $(top_srcdir)/include alsa; \
+	fi
+
+version.h: stamp-vh alsa_link
+	for f in asoundlib.h version.h; do \
+		if ! test -r $(top_srcdir)/include/$$f; then \
+			ln -s $(abs_top_builddir)/include/$$f $(top_srcdir)/include/$$f; \
+		fi; \
+	done
 
 stamp-vh: $(top_builddir)/configure.ac
 	@echo "/*" > ver.tmp