CMakeLists.txt: Explicitly define _FILE_OFFSET_BITS for glibc

Fixes build on 32-bit glibc platforms. See: #1 (comment)
nmeum · Oct 8, 2019 · b7ab657 · b7ab657
1 parent eebf5db
commit b7ab657
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/vendor/CMakeLists.txt b/vendor/CMakeLists.txt
@@ -42,6 +42,11 @@ set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=gnu++2a")
 set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wno-attributes")
 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-attributes")
 
+# libfsmgr (required by fastboot) requires a 64-bit off_t for lseek. On
+# 32-bit glibc platforms this is not the case by default.
+set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -D_FILE_OFFSET_BITS=64")
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -D_FILE_OFFSET_BITS=64")
+
 # Targets which should be installed by `make install`.
 install(TARGETS adb fastboot "${ANDROID_MKE2FS_NAME}"
 	simg2img img2simg append2simg DESTINATION bin)