office/zathura: Re-enable synctex.

Signed-off-by: B. Watson <yalhcru@gmail.com>

office/zathura/README

@@ -18,3 +18,10 @@ are the same.
 
 zathura 0.3.8 is the last possible update for Slackware
 14.2. Newer versions would require a newer gtk+3.
+
+Optional dependency: office/texlive. If zathura is built on a system
+with texlive installed, synctex support will be included. Documentation
+on zathura's synctex support is poor; for some hints on using synctex
+with zathura, see:
+
+http://www.math.cmu.edu/~gautam/sj/blog/20140310-zathura-fsearch.html

office/zathura/slack-desc

@@ -14,6 +14,6 @@ zathura: zathura is an application that provides a minimalistic and space
 zathura: saving interface as well as an easy usage that mainly focuses on
 zathura: keyboard interaction.
 zathura:
-zathura:
+zathura: This package was built @WITH@ texlive synctex support.
 zathura:
 zathura:

office/zathura/synctex_fix.diff

@@ -0,0 +1,59 @@
+diff -Naur zathura-0.3.8/zathura/synctex.c zathura-0.3.8.patched/zathura/synctex.c
+--- zathura-0.3.8/zathura/synctex.c	2017-12-20 08:40:45.000000000 -0500
++++ zathura-0.3.8.patched/zathura/synctex.c	2018-09-09 13:56:54.489287021 -0400
+@@ -24,13 +24,13 @@
+     return false;
+   }
+ 
+-  synctex_scanner_t scanner = synctex_scanner_new_with_output_file(filename, NULL, 1);
++  synctex_scanner_p scanner = synctex_scanner_new_with_output_file(filename, NULL, 1);
+   if (scanner == NULL) {
+     girara_debug("Failed to create synctex scanner.");
+     return false;
+   }
+ 
+-  synctex_scanner_t temp = synctex_scanner_parse(scanner);
++  synctex_scanner_p temp = synctex_scanner_parse(scanner);
+   if (temp == NULL) {
+     girara_debug("Failed to parse synctex file.");
+     synctex_scanner_free(scanner);
+@@ -41,7 +41,7 @@
+ 
+   if (synctex_edit_query(scanner, page + 1u, x, y) > 0) {
+     /* Assume that a backward search returns at most one result. */
+-    synctex_node_t node = synctex_next_result(scanner);
++    synctex_node_p node = synctex_scanner_next_result(scanner);
+     if (node != NULL) {
+       if (input_file != NULL) {
+         *input_file = g_strdup(synctex_scanner_get_name(scanner, synctex_node_tag(node)));
+@@ -127,13 +127,13 @@
+   ++line;
+   ++column;
+ 
+-  synctex_scanner_t scanner = synctex_scanner_new_with_output_file(filename, NULL, 1);
++  synctex_scanner_p scanner = synctex_scanner_new_with_output_file(filename, NULL, 1);
+   if (scanner == NULL) {
+     girara_debug("Failed to create synctex scanner.");
+     return NULL;
+   }
+ 
+-  synctex_scanner_t temp = synctex_scanner_parse(scanner);
++  synctex_scanner_p temp = synctex_scanner_parse(scanner);
+   if (temp == NULL) {
+     girara_debug("Failed to parse synctex file.");
+     synctex_scanner_free(scanner);
+@@ -143,11 +143,11 @@
+   girara_list_t* hitlist     = girara_list_new2(g_free);
+   girara_list_t* other_rects = girara_list_new2(g_free);
+ 
+-  if (synctex_display_query(scanner, input_file, line, column) > 0) {
+-    synctex_node_t node        = NULL;
++  if (synctex_display_query(scanner, input_file, line, column, -1) > 0) {
++    synctex_node_p node        = NULL;
+     bool got_page              = false;
+ 
+-    while ((node = synctex_next_result (scanner)) != NULL) {
++    while ((node = synctex_scanner_next_result (scanner)) != NULL) {
+       const unsigned int current_page = synctex_node_page(node) - 1;
+       if (got_page == false) {
+         got_page = true;

office/zathura/zathura.SlackBuild

@@ -23,6 +23,11 @@
 #  OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 #  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
+# 20180909 bkw:
+# - Re-enable building with synctex, since texlive has been fixed. This
+#   requires a patch, since this version of zathura was written for an
+#   older version of texlive.
+
 # 20180903 bkw:
 # - Disable building with synctex, since it currently doesn't work due
 #   to a bug in the texlive package. Will be re-enabled when the texlive
@@ -151,6 +156,17 @@ find -L .  -perm /111 -a \! -perm 755 -a -exec chmod 755 {} \+ -o \
 
 patch -p1 < $CWD/dlopen_hack.diff
 
+# synctex API in recent texlive has changed from whatever version
+# zathura was developed with. This is a monkey patch, with me as
+# the monkey: monkey see someone else's patch for something else here:
+# https://bugs.debian.org/cgi-bin/bugreport.cgi?att=1;bug=896566;filename=synctex2;msg=10
+# ...and monkey do the same thing to zathura.
+# A while after I did this, I found someone else's patch:
+# http://pk.archive.ubuntu.com/ubuntu/ubuntu/pool/universe/z/zathura/zathura_0.3.9-2.debian.tar.xz
+# ...the portion of the patch that alters synctex.c looks identical to
+# the one I came up with, meaning I could have saved myself some work...
+patch -p1 < $CWD/synctex_fix.diff
+
 sed -i "s/-pedantic/$SLKCFLAGS/" config.mk
 sed -i '/--dependency-file/d' Makefile
 
@@ -165,10 +181,16 @@ make \
   RSTTOMAN="" \
   COLOR=0 \
   GLIB_VERSION_CHECK=0 \
-  WITH_SYNCTEX=0 \
+  VERBOSE=1 \
   all \
   install
 
+# Check & see if synctex was built in, for slack-desc purposes.
+WITH=WITHOUT
+if ldd $PKG/usr/bin/$PRGNAM | grep -q libsynctex; then
+  WITH=WITH
+fi
+
 gzip $PKG/usr/man/man?/*.?
 
 mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
@@ -194,11 +216,8 @@ rm -rf $PLUGIN-$PLUGINVER
 tar xvf $CWD/$PLUGIN-$PLUGINVER.tar.gz
 cd $PLUGIN-$PLUGINVER
 chown -R root:root .
-find -L . \
- \( -perm 777 -o -perm 775 -o -perm 750 -o -perm 711 -o -perm 555 -o -perm 511 \) \
- -exec chmod 755 {} \; -o \
- \( -perm 666 -o -perm 664 -o -perm 600 -o -perm 444 -o -perm 440 -o -perm 400 \) \
- -exec chmod 644 {} \;
+find -L .  -perm /111 -a \! -perm 755 -a -exec chmod 755 {} \+ -o \
+        \! -perm /111 -a \! -perm 644 -a -exec chmod 644 {} \+
 
 # ZATHURA_VERSION_CHECK=0 is required because zathura.pc isn't installed.
 
@@ -221,7 +240,7 @@ cat $CWD/$PRGNAM.png > $PKG/usr/share/pixmaps/$PRGNAM.png
 echo "Icon=$PRGNAM" >> $PKG/usr/share/applications/$PRGNAM.desktop
 
 mkdir -p $PKG/install
-cat $CWD/slack-desc > $PKG/install/slack-desc
+sed "s,@WITH@,$WITH," $CWD/slack-desc > $PKG/install/slack-desc
 cat $CWD/doinst.sh > $PKG/install/doinst.sh
 
 cd $PKG