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cmake: disable tests and man generation if perl/nroff not found

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Fixes https://github.com/curl/curl/issues/1500
Reported-by: Jay Satiro

Fixes https://github.com/curl/curl/pull/1662
Assisted-by: Tom Seddon
Assisted-by: dpull@users.noreply.github.com
Assisted-by: elelel@users.noreply.github.com

Closes https://github.com/curl/curl/pull/1924
This commit is contained in:
Sergei Nikulov 2017-09-26 10:42:12 +03:00 • committed by Jay Satiro
parent 753a5da906
commit 440dbcb06e
2 changed files with 47 additions and 32 deletions
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29
CMake/Macros.cmake
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@ -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)