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# Inspiration: https://github.com/ros2-dotnet/Fast-RTPS
macro (SETUP_ABI_VERSIONS)
file (STRINGS ${PROJECT_SOURCE_DIR}/configure.ac CONFIGURE_AC_CONTENT)
file (STRINGS
configure.ac
SNDFILE_LT_CURRENT_TMP
REGEX "^m4_define\\(\\[?lt_current\\]?, *\\[?[0-9]+\\]?\\)"
)
string (REGEX REPLACE "m4_define\\(\\[?lt_current\\]?, *\\[?([0-9]+)\\]?\\)"
"\\1"
SNDFILE_LT_CURRENT
${SNDFILE_LT_CURRENT_TMP}
)
file (STRINGS
configure.ac
SNDFILE_LT_REVISION_TMP
REGEX "^m4_define\\(\\[?lt_revision\\]?, *\\[?[0-9]+\\]?\\)"
)
string (REGEX REPLACE "m4_define\\(\\[?lt_revision\\]?, *\\[?([0-9]+)\\]?\\)"
"\\1"
SNDFILE_LT_REVISION
${SNDFILE_LT_REVISION_TMP}
)
file (STRINGS
configure.ac
SNDFILE_LT_AGE_TMP
REGEX "^m4_define\\(\\[?lt_age\\]?, *\\[?[0-9]+\\]?\\)"
)
string (REGEX REPLACE "m4_define\\(\\[?lt_age\\]?, *\\[?([0-9]+)\\]?\\)"
"\\1"
SNDFILE_LT_AGE
${SNDFILE_LT_AGE_TMP}
)
#
# Calculate CMake compatible ABI version from libtool version.
#
math (EXPR SNDFILE_ABI_VERSION_MAJOR "${SNDFILE_LT_CURRENT} - ${SNDFILE_LT_AGE}")
set (SNDFILE_ABI_VERSION_MINOR ${SNDFILE_LT_AGE})
set (SNDFILE_ABI_VERSION_PATCH ${SNDFILE_LT_REVISION})
set (SNDFILE_ABI_VERSION "${SNDFILE_ABI_VERSION_MAJOR}.${SNDFILE_ABI_VERSION_MINOR}.${SNDFILE_ABI_VERSION_PATCH}")
#
# Apple platform current and compatibility versions.
#
math (EXPR SNDFILE_MACHO_CURRENT_VERSION_MAJOR "${SNDFILE_ABI_VERSION_MAJOR} + ${SNDFILE_ABI_VERSION_MINOR} + 1")
set (SNDFILE_MACHO_CURRENT_VERSION "${SNDFILE_MACHO_CURRENT_VERSION_MAJOR}.${SNDFILE_ABI_VERSION_PATCH}.0")
set (SNDFILE_MACHO_COMPATIBILITY_VERSION "${SNDFILE_MACHO_CURRENT_VERSION_MAJOR}.0.0")
endmacro (SETUP_ABI_VERSIONS)
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