CMake/Modules/FindGnuplot.cmake
Rolf Eike Beer 745b56f58c Find*.cmake: drop the comments before including FPHSA
No need to explain this over and over again.  While at it, do some other
minor cleanups to whitespace and comments (i.e. delete them).
2016-11-28 16:40:13 -05:00

55 lines
1.5 KiB
CMake

# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
# file Copyright.txt or https://cmake.org/licensing for details.
#.rst:
# FindGnuplot
# -----------
#
# this module looks for gnuplot
#
#
#
# Once done this will define
#
# ::
#
# GNUPLOT_FOUND - system has Gnuplot
# GNUPLOT_EXECUTABLE - the Gnuplot executable
# GNUPLOT_VERSION_STRING - the version of Gnuplot found (since CMake 2.8.8)
#
#
#
# GNUPLOT_VERSION_STRING will not work for old versions like 3.7.1.
include(${CMAKE_CURRENT_LIST_DIR}/FindCygwin.cmake)
find_program(GNUPLOT_EXECUTABLE
NAMES
gnuplot
pgnuplot
wgnupl32
PATHS
${CYGWIN_INSTALL_PATH}/bin
)
if (GNUPLOT_EXECUTABLE)
execute_process(COMMAND "${GNUPLOT_EXECUTABLE}" --version
OUTPUT_VARIABLE GNUPLOT_OUTPUT_VARIABLE
ERROR_QUIET
OUTPUT_STRIP_TRAILING_WHITESPACE)
string(REGEX REPLACE "^gnuplot ([0-9\\.]+)( patchlevel )?" "\\1." GNUPLOT_VERSION_STRING "${GNUPLOT_OUTPUT_VARIABLE}")
string(REGEX REPLACE "\\.$" "" GNUPLOT_VERSION_STRING "${GNUPLOT_VERSION_STRING}")
unset(GNUPLOT_OUTPUT_VARIABLE)
endif()
# for compatibility
set(GNUPLOT ${GNUPLOT_EXECUTABLE})
include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake)
FIND_PACKAGE_HANDLE_STANDARD_ARGS(Gnuplot
REQUIRED_VARS GNUPLOT_EXECUTABLE
VERSION_VAR GNUPLOT_VERSION_STRING)
mark_as_advanced( GNUPLOT_EXECUTABLE )