build

Fix double free on out of memory #939

Job	Run time
build (ubuntu-24.04, gcc, autotools)	49s
build-cross (x86_64-w64-mingw32)	1m 4s
build-windows (x86)	1m 20s
build (ubuntu-24.04, gcc, cmake)	51s
build-cross (i686-w64-mingw32)	3m 1s
build-windows (x64)	1m 36s
build (ubuntu-24.04, clang, autotools)	40s
build (ubuntu-24.04, clang, distcheck)	49s
build (ubuntu-24.04, clang, cmake)	42s
build (macos-13, gcc, autotools)	1m 9s
build (macos-13, gcc, cmake)	1m 39s
build (macos-13, clang, autotools)	1m 42s
build (macos-13, clang, cmake)	1m 31s
build (macos-14, gcc, autotools)	42s
build (macos-14, gcc, cmake)	40s
build (macos-14, clang, autotools)	38s
build (macos-14, clang, cmake)	43s
release	0s
	19m 36s

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