Imported Upstream version 7.59.0

[platform/upstream/curl.git] / CMake / Macros.cmake

diff --git a/CMake/Macros.cmake b/CMake/Macros.cmake
index dab005f..82aadca 100644 (file)
--- a/CMake/Macros.cmake
+++ b/CMake/Macros.cmake
@@ -93,3 +93,32 @@ macro(CURL_INTERNAL_TEST_RUN CURL_TEST)
     endif(${CURL_TEST}_COMPILE AND NOT ${CURL_TEST})
   endif()
 endmacro(CURL_INTERNAL_TEST_RUN)
+
+macro(CURL_NROFF_CHECK)
+  find_program(NROFF NAMES gnroff nroff)
+  if(NROFF)
+    # Need a way to write to stdin, this will do
+    file(WRITE "${CMAKE_CURRENT_BINARY_DIR}/nroff-input.txt" "test")
+    # Tests for a valid nroff option to generate a manpage
+    foreach(_MANOPT "-man" "-mandoc")
+      execute_process(COMMAND "${NROFF}" ${_MANOPT}
+        OUTPUT_VARIABLE NROFF_MANOPT_OUTPUT
+        INPUT_FILE "${CMAKE_CURRENT_BINARY_DIR}/nroff-input.txt"
+        ERROR_QUIET)
+      # Save the option if it was valid
+      if(NROFF_MANOPT_OUTPUT)
+        message("Found *nroff option: -- ${_MANOPT}")
+        set(NROFF_MANOPT ${_MANOPT})
+        set(NROFF_USEFUL ON)
+        break()
+      endif()
+    endforeach()
+    # No need for the temporary file
+    file(REMOVE "${CMAKE_CURRENT_BINARY_DIR}/nroff-input.txt")
+    if(NOT NROFF_USEFUL)
+      message(WARNING "Found no *nroff option to get plaintext from man pages")
+    endif()
+  else()
+    message(WARNING "Found no *nroff program")
+  endif()
+endmacro(CURL_NROFF_CHECK)