doc: add generation of man pages from asciidoc sources

[libam7xxx.git] / cmake_modules / FindAsciidoc.cmake

diff --git a/cmake_modules/FindAsciidoc.cmake b/cmake_modules/FindAsciidoc.cmake
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+++ b/cmake_modules/FindAsciidoc.cmake
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+# - Find Asciidoc
+# this module looks for asciidoc
+#
+# ASCIIDOC_EXECUTABLE - the full path to asciidoc
+# ASCIIDOC_A2X_EXECUTABLE - the full path to asciidoc's a2x
+# ASCIIDOC_FOUND - If false, don't attempt to use asciidoc.
+#
+# Taken from:
+# http://lissyx.dyndns.org/redmine/projects/qpdfpresenterconsole/repository/revisions/master/raw/cmake/FindAsciidoc.cmake
+
+FIND_PROGRAM(ASCIIDOC_EXECUTABLE asciidoc)
+FIND_PROGRAM(ASCIIDOC_A2X_EXECUTABLE a2x)
+
+MARK_AS_ADVANCED(
+ASCIIDOC_EXECUTABLE
+ASCIIDOC_A2X_EXECUTABLE
+)
+
+IF ((NOT ASCIIDOC_EXECUTABLE) OR (NOT ASCIIDOC_A2X_EXECUTABLE))
+SET(ASCIIDOC_FOUND "NO")
+ELSE ((NOT ASCIIDOC_EXECUTABLE) OR (NOT ASCIIDOC_A2X_EXECUTABLE))
+SET(ASCIIDOC_FOUND "YES")
+ENDIF ((NOT ASCIIDOC_EXECUTABLE) OR (NOT ASCIIDOC_A2X_EXECUTABLE))
+
+IF (NOT ASCIIDOC_FOUND AND Asciidoc_FIND_REQUIRED)
+MESSAGE(FATAL_ERROR "Could not find asciidoc")
+ENDIF (NOT ASCIIDOC_FOUND AND Asciidoc_FIND_REQUIRED)