1 files changed, 60 insertions, 0 deletions
diff --git a/community/ruby-mathematical/fix-extconf.patch b/community/ruby-mathematical/fix-extconf.patch
new file mode 100644
index 0000000000..a73b39989b
--- /dev/null
+++ b/community/ruby-mathematical/fix-extconf.patch
@@ -0,0 +1,60 @@
+From 7ff0cd468ae877eb3de3bff0931b768560849d6f Mon Sep 17 00:00:00 2001
+From: Jakub Jirutka <jakub@jirutka.cz>
+Date: Sat, 25 Mar 2017 01:14:41 +0100
+Subject: [PATCH] Do not add -llasem and -lmtex2MML to $LIBS when pkg_config is used
+
+pkg-config provides correct arguments to the linker.
+
+It seems that the lasem library is named differently on various
+systems. Unmodified lasem 0.5.0 installs library named
+liblasm-0.6.so.5.0.0 (and symlink liblasm.so), so linker fails when
+ -llasm is passed.
+
+Upstream-Issue: https://github.com/gjtorikian/mathematical/pull/71
+---
+ ext/mathematical/extconf.rb | 17 ++++++++++++++---
+ 1 file changed, 14 insertions(+), 3 deletions(-)
+
+diff --git a/ext/mathematical/extconf.rb b/ext/mathematical/extconf.rb
+index 04993aa..b6cf5bf 100644
+--- a/ext/mathematical/extconf.rb
++++ b/ext/mathematical/extconf.rb
+@@ -69,8 +69,14 @@ if !using_system_mtex2mml?
+   end
+   FileUtils.mkdir_p(MTEX2MML_LIB_DIR)
+   FileUtils.cp_r(File.join(MTEX2MML_BUILD_DIR, 'libmtex2MML.a'), MTEX2MML_LIB_DIR)
++  $LIBS << ' -lmtex2MML'
+ else
+-  dir_config('mtex2MML').any? || pkg_config('libmtex2MML') || system('dpkg -s libmtex2MML >/dev/null')
++  if dir_config('mtex2MML').any? || system('dpkg -s libmtex2MML >/dev/null')
++    $LIBS << ' -lmtex2MML'
++  else
++    # NOTE: pkg_config implicitly adds right -l argument for the linker.
++    pkg_config('libmtex2MML') || pkg_config('mtex2MML')
++  end
+ end
+ 
+ if !using_system_lasem?
+@@ -82,8 +88,14 @@ if !using_system_lasem?
+   end
+   FileUtils.mkdir_p(LASEM_LIB_DIR)
+   FileUtils.cp_r(File.join(LASEM_BUILD_DIR, "liblasem.#{SHARED_EXT}"), LASEM_LIB_DIR)
++  $LIBS << '-llasem'
+ else
+-  dir_config('lasem').any? || pkg_config('liblasem') || system('dpkg -s liblasem >/dev/null')
++  if dir_config('lasem').any? || system('dpkg -s liblasem >/dev/null')
++    $LIBS << '-llasem'
++  else
++    # NOTE: pkg_config implicitly adds right -l argument for the linker.
++    pkg_config('liblasem') || pkg_config('lasem')
++  end
+ end
+ 
+ LIB_DIRS = [MTEX2MML_LIB_DIR, LASEM_LIB_DIR]
+@@ -96,6 +108,5 @@ find_header('mtex2MML.h', MTEX2MML_SRC_DIR)
+ flag = ENV['TRAVIS'] ? '-O0' : '-O2'
+ $LDFLAGS << " #{`pkg-config --static --libs glib-2.0 gdk-pixbuf-2.0 cairo pango`.chomp}"
+ $CFLAGS << " #{flag} #{`pkg-config --cflags glib-2.0 gdk-pixbuf-2.0 cairo pango`.chomp}"
+-$LIBS << ' -lmtex2MML -llasem'
+ 
+ create_makefile('mathematical/mathematical')