[Debian-med-packaging] Bug#947194: raxml FTCBFS: builds for the build architecture

[Helmut Grohne]

Source: raxml
Version: 8.2.12+dfsg-2
Tags: patch
User: debian-cross at lists.debian.org
Usertags: ftcbfs

raxml fails to cross build from source, because it does not pass cross
tools to make. The easiest way of fixing that - using dh_auto_build -
fixes this part, but raxml continues to fail, because it also uses
help2man. There are no good solutions to help2man. For that reason, this
patch leaves the help2man problem as is and only fixes the dh_auto_build
part. Here are the options for fixing help2man:

 * Stop using help2man.
 * Ship manual pages in an architecture:all package.
 * Build twice (once for help2man and once for real).
 * Extract the --help output using a script and run that instead of the
   built raxml binary.
 * Only support cross building with a nodoc profile excluing manual
   pages.

Please consider applying the attached patch as an incremental
improvement and close this bug when doing so even without fixing the
help2man part.

Helmut
-------------- next part --------------
diff --minimal -Nru raxml-8.2.12+dfsg/debian/changelog raxml-8.2.12+dfsg/debian/changelog
--- raxml-8.2.12+dfsg/debian/changelog	2019-12-16 17:54:43.000000000 +0100
+++ raxml-8.2.12+dfsg/debian/changelog	2019-12-22 09:02:16.000000000 +0100
@@ -1,3 +1,11 @@
+raxml (8.2.12+dfsg-2.1) UNRELEASED; urgency=medium
+
+  * Non-maintainer upload.
+  * Improve cross building: Let dh_auto_build pass cross tools to make.
+    (Closes: #-1)
+
+ -- Helmut Grohne <helmut at subdivi.de>  Sun, 22 Dec 2019 09:02:16 +0100
+
 raxml (8.2.12+dfsg-2) unstable; urgency=medium
 
   * Team upload.
diff --minimal -Nru raxml-8.2.12+dfsg/debian/rules raxml-8.2.12+dfsg/debian/rules
--- raxml-8.2.12+dfsg/debian/rules	2019-12-16 15:03:35.000000000 +0100
+++ raxml-8.2.12+dfsg/debian/rules	2019-12-22 09:02:14.000000000 +0100
@@ -31,7 +31,7 @@
 override_dh_auto_build:
 	mkdir -p $(BINDIR)
 	set -e ; for mfile in $(MFILES); do \
-	    $(MAKE) -f $${mfile} $(MFLAGS); \
+	    dh_auto_build --buildsystem=makefile -- -f $${mfile} $(MFLAGS); \
 	    curexe=`ls $(exe)* | head -n 1` ; \
 	    if [ -e $(BINDIR)/$${curexe} ] ; then \
 		echo "**** ERROR: $${curexe} was created before!!" && false ; \