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-rw-r--r--CMake/Macros.cmake29
1 files changed, 29 insertions, 0 deletions
diff --git a/CMake/Macros.cmake b/CMake/Macros.cmake
index dab005f73..82aadca9d 100644
--- 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)