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# genout.cmake.in
# Generate .out from .c with awk (generic), based upon the automake logic.
# Copyright (C) 2016 Glenn Randers-Pehrson
# Written by Roger Leigh, 2016
# This code is released under the libpng license.
# For conditions of distribution and use, see the disclaimer
# and license in png.h
# Variables substituted from CMakeLists.txt
set(SRCDIR "@CMAKE_CURRENT_SOURCE_DIR@")
set(BINDIR "@CMAKE_CURRENT_BINARY_DIR@")
set(AWK "@AWK@")
set(CMAKE_C_COMPILER "@CMAKE_C_COMPILER@")
set(CMAKE_C_FLAGS @CMAKE_C_FLAGS@)
set(INCDIR "@CMAKE_CURRENT_BINARY_DIR@")
set(PNG_PREFIX "@PNG_PREFIX@")
set(PNGLIB_MAJOR "@PNGLIB_MAJOR@")
set(PNGLIB_MINOR "@PNGLIB_MINOR@")
set(PNGLIB_VERSION "@PNGLIB_VERSION@")
set(ZLIBINCDIR "@ZLIB_INCLUDE_DIRS@")
set(PLATFORM_C_FLAGS)
if(APPLE)
set(CMAKE_OSX_INTERNAL_ARCHITECTURES "@CMAKE_OSX_INTERNAL_ARCHITECTURES@")
set(CMAKE_OSX_SYSROOT "@CMAKE_OSX_SYSROOT@")
if(CMAKE_OSX_INTERNAL_ARCHITECTURES)
set(PLATFORM_C_FLAGS ${PLATFORM_C_FLAGS} -arch ${CMAKE_OSX_INTERNAL_ARCHITECTURES})
endif()
if(CMAKE_OSX_SYSROOT)
set(PLATFORM_C_FLAGS ${PLATFORM_C_FLAGS} -isysroot ${CMAKE_OSX_SYSROOT})
endif()
endif()
get_filename_component(INPUTEXT "${INPUT}" EXT)
get_filename_component(OUTPUTEXT "${OUTPUT}" EXT)
get_filename_component(INPUTBASE "${INPUT}" NAME_WE)
get_filename_component(OUTPUTBASE "${OUTPUT}" NAME_WE)
get_filename_component(INPUTDIR "${INPUT}" PATH)
get_filename_component(OUTPUTDIR "${OUTPUT}" PATH)
if ("${INPUTEXT}" STREQUAL ".c" AND "${OUTPUTEXT}" STREQUAL ".out")
get_filename_component(GENDIR "${OUTPUT}" PATH)
file(MAKE_DIRECTORY "${GENDIR}")
file(REMOVE "${OUTPUT}.tf1" "${OUTPUT}.tf2")
set(INCLUDES "-I${INCDIR}")
if(ZLIBINCDIR)
foreach(dir ${ZLIBINCDIR})
list(APPEND INCLUDES "-I${dir}")
endforeach()
endif()
if(PNG_PREFIX)
set(PNG_PREFIX_DEF "-DPNG_PREFIX=${PNG_PREFIX}")
endif()
execute_process(COMMAND "${CMAKE_C_COMPILER}" "-E"
${CMAKE_C_FLAGS}
${PLATFORM_C_FLAGS}
"-I${SRCDIR}"
"-I${BINDIR}"
${INCLUDES}
"-DPNGLIB_LIBNAME=PNG${PNGLIB_MAJOR}${PNGLIB_MINOR}_0"
"-DPNGLIB_VERSION=${PNGLIB_VERSION}"
"-DSYMBOL_PREFIX=${SYMBOL_PREFIX}"
"-DPNG_NO_USE_READ_MACROS"
"-DPNG_BUILDING_SYMBOL_TABLE"
${PNG_PREFIX_DEF}
"${INPUT}"
OUTPUT_FILE "${OUTPUT}.tf1"
WORKING_DIRECTORY "${BINDIR}"
RESULT_VARIABLE CPP_FAIL)
if(CPP_FAIL)
message(FATAL_ERROR "Failed to generate ${OUTPUT}.tf1")
endif()
execute_process(COMMAND "${AWK}" -f "${SRCDIR}/scripts/dfn.awk"
"out=${OUTPUT}.tf2" "${OUTPUT}.tf1"
WORKING_DIRECTORY "${BINDIR}"
RESULT_VARIABLE AWK_FAIL)
if(AWK_FAIL)
message(FATAL_ERROR "Failed to generate ${OUTPUT}.tf2")
endif()
file(REMOVE "${OUTPUT}.tf1")
file(RENAME "${OUTPUT}.tf2" "${OUTPUT}")
else()
message(FATAL_ERROR "Unsupported conversion: ${INPUTEXT} to ${OUTPUTEXT}")
endif()
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