[PATCH] CMake targets for building man pages

[Andrew Wilkins]

Hi chandlerc,

This adds targets to build the clang
man page, as in the corresponding Makefile.
The output is used in Debian packaging,
which is currently stuck using autotools.

http://reviews.llvm.org/D10304

Files:
  docs/CMakeLists.txt
  docs/tools/CMakeLists.txt

Index: docs/CMakeLists.txt
===================================================================
--- docs/CMakeLists.txt
+++ docs/CMakeLists.txt
@@ -1,3 +1,4 @@
+add_subdirectory(tools)
 
 if (DOXYGEN_FOUND)
 if (LLVM_ENABLE_DOXYGEN)
Index: docs/tools/CMakeLists.txt
===================================================================
--- /dev/null
+++ docs/tools/CMakeLists.txt
@@ -0,0 +1,58 @@
+llvm_find_program(POD2HTML NAMES pod2html)
+if (HAVE_POD2HTML)
+  add_custom_command(
+    OUTPUT clang.html
+    DEPENDS clang.pod
+    WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
+    COMMENT "Rendering clang man page as HTML." VERBATIM
+    COMMAND
+    ${POD2HTML} --css=${CMAKE_CURRENT_SOURCE_DIR}/manpage.css
+                 --podpath=.
+                 --htmlroot=.
+                 --infile=${CMAKE_CURRENT_SOURCE_DIR}/clang.pod
+                 --outfile=clang.html
+                 --title=clang
+  )
+  add_custom_target(clang-man-html ALL DEPENDS clang.html)
+  if (NOT LLVM_INSTALL_TOOLCHAIN_ONLY)
+    install(FILES ${CMAKE_CURRENT_BINARY_DIR}/clang.html
+            DESTINATION share/man)
+  endif()
+endif()
+
+llvm_find_program(POD2MAN NAMES pod2man)
+if (HAVE_POD2MAN)
+  add_custom_command(
+    OUTPUT clang.1
+    DEPENDS clang.pod
+    WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
+    COMMENT "Rendering clang man page." VERBATIM
+    COMMAND
+    ${POD2MAN} "--release=clang ${CLANG_VERSION}"
+               "--center=Clang Tools Documentation"
+               ${CMAKE_CURRENT_SOURCE_DIR}/clang.pod > clang.1
+  )
+  add_custom_target(clang-man ALL DEPENDS clang.1)
+  if (NOT LLVM_INSTALL_TOOLCHAIN_ONLY)
+    install(FILES ${CMAKE_CURRENT_BINARY_DIR}/clang.1
+            DESTINATION share/man)
+  endif()
+
+  llvm_find_program(GROFF NAMES groff)
+  if (HAVE_GROFF)
+    add_custom_command(
+      OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/clang.ps
+      DEPENDS clang.1
+      WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
+      COMMENT "Rendering clang man page as postscript." VERBATIM
+      COMMAND
+      ${GROFF} -Tps -man clang.1 > clang.ps
+    )
+    add_custom_target(clang-man-ps ALL DEPENDS clang.ps)
+    if (NOT LLVM_INSTALL_TOOLCHAIN_ONLY)
+      install(FILES ${CMAKE_CURRENT_BINARY_DIR}/clang.ps
+              DESTINATION share/man)
+    endif()
+  endif()
+endif()
+

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