[FFmpeg-devel] [PATCH] build: check for perl presence and compile POD pages only in that case

[Stefano Sabatini]

perl is required by the texi2pod.pl script. Should avoid FATE failure on
Haiku, where perl is apparently not available.
---
 configure    |    5 ++++-
 doc/Makefile |   10 ++++++++--
 2 files changed, 12 insertions(+), 3 deletions(-)

diff --git a/configure b/configure
index 6c4047f..6dc983f 100755
--- a/configure
+++ b/configure
@@ -1285,6 +1285,7 @@ HAVE_LIST="
     mmap
     nanosleep
     PeekNamedPipe
+    perl
     pod2man
     poll_h
     posix_memalign
@@ -1838,7 +1839,7 @@ ffprobe_deps="avcodec avformat"
 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
 ffserver_extralibs='$ldl'
 
-doc_deps_any="texi2html makeinfo pod2man"
+doc_deps_any="texi2html makeinfo perl pod2man"
 
 # tests
 colormatrix1_test_deps="colormatrix_filter"
@@ -3515,6 +3516,7 @@ enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
 
 texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
+perl --version > /dev/null 2>&1 && enable perl || disable perl
 pod2man --help > /dev/null 2>&1 && enable pod2man || disable pod2man
 
 check_header linux/fb.h
@@ -3857,6 +3859,7 @@ echo "openssl enabled           ${openssl-no}"
 echo "zlib enabled              ${zlib-no}"
 echo "bzlib enabled             ${bzlib-no}"
 echo "texi2html enabled         ${texi2html-no}"
+echo "perl enabled              ${perl-no}"
 echo "pod2man enabled           ${pod2man-no}"
 echo "makeinfo enabled          ${makeinfo-no}"
 test -n "$random_seed" &&
diff --git a/doc/Makefile b/doc/Makefile
index 845f5f7..16c13fc 100644
--- a/doc/Makefile
+++ b/doc/Makefile
@@ -11,9 +11,15 @@ HTMLPAGES   = $(PROGS-yes:%=doc/%.html)                                 \
 
 TXTPAGES    = doc/fate.txt                                              \
 
+ifdef HAVE_PERL
+ifdef HAVE_POD2MAN
+HAVE_MANPAGES=yes
+endif
+endif
 
 DOCS-$(HAVE_TEXI2HTML)  += $(HTMLPAGES)
-DOCS-$(HAVE_POD2MAN)    += $(MANPAGES) $(PODPAGES)
+DOCS-$(HAVE_PERL)       += $(PODPAGES)
+DOCS-$(HAVE_MANPAGES)   += $(MANPAGES)
 DOCS-$(HAVE_MAKEINFO)   += $(TXTPAGES)
 DOCS = $(DOCS-yes)
 
@@ -53,7 +59,7 @@ $(DOCS): | doc/
 
 install-man:
 
-ifdef HAVE_POD2MAN
+ifdef HAVE_MANPAGES
 install-progs-$(CONFIG_DOC): install-man
 
 install-man: $(MANPAGES)
-- 
1.7.5.4