cmake: Fix library ABI version on Linux

hebasto · hebasto · commit 069f9e01f398 · 2023-04-18T12:06:59.000+01:00
This change emulates Libtool to make sure Libtool and CMake agree on the
ABI version.
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
@@ -34,9 +34,10 @@ set_target_properties(secp256k1_precomputed PROPERTIES POSITION_INDEPENDENT_CODE
 target_include_directories(secp256k1 PUBLIC
   $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>
 )
+math(EXPR ${PROJECT_NAME}_soversion "${${PROJECT_NAME}_LIB_VERSION_CURRENT} - ${${PROJECT_NAME}_LIB_VERSION_AGE}")
 set_target_properties(secp256k1 PROPERTIES
-  VERSION "${${PROJECT_NAME}_LIB_VERSION_CURRENT}.${${PROJECT_NAME}_LIB_VERSION_AGE}.${${PROJECT_NAME}_LIB_VERSION_REVISION}"
-  SOVERSION "${${PROJECT_NAME}_LIB_VERSION_CURRENT}"
+  VERSION ${${PROJECT_NAME}_soversion}.${${PROJECT_NAME}_LIB_VERSION_AGE}.${${PROJECT_NAME}_LIB_VERSION_REVISION}
+  SOVERSION ${${PROJECT_NAME}_soversion}
 )
 
 if(SECP256K1_BUILD_BENCHMARK)

Original file line number	Diff line number	Diff line change
`@@ -34,9 +34,10 @@ set_target_properties(secp256k1_precomputed PROPERTIES POSITION_INDEPENDENT_CODE`
`34`	`34`	`target_include_directories(secp256k1 PUBLIC`
`35`	`35`	`$<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>`
`36`	`36`	`)`
	`37`	`+math(EXPR ${PROJECT_NAME}_soversion "${${PROJECT_NAME}_LIB_VERSION_CURRENT} - ${${PROJECT_NAME}_LIB_VERSION_AGE}")`
`37`	`38`	`set_target_properties(secp256k1 PROPERTIES`
`38`		`- VERSION "${${PROJECT_NAME}_LIB_VERSION_CURRENT}.${${PROJECT_NAME}_LIB_VERSION_AGE}.${${PROJECT_NAME}_LIB_VERSION_REVISION}"`
`39`		`- SOVERSION "${${PROJECT_NAME}_LIB_VERSION_CURRENT}"`
	`39`	`+ VERSION ${${PROJECT_NAME}_soversion}.${${PROJECT_NAME}_LIB_VERSION_AGE}.${${PROJECT_NAME}_LIB_VERSION_REVISION}`
	`40`	`+ SOVERSION ${${PROJECT_NAME}_soversion}`
`40`	`41`	`)`
`41`	`42`
`42`	`43`	`if(SECP256K1_BUILD_BENCHMARK)`