Build

Update to GCC 15 #151

Job	Run time
Native build	6s
Cross build (ia64-unknown-linux-gnu)	52m 32s
Cross build (alpha-unknown-linux-gnu)	45m 20s
Cross build (x86_64-unknown-linux-gnu)	47m 5s
Cross build (i386-unknown-linux-gnu)	45m 49s
Cross build (arm-unknown-linux-gnueabi)	45m 21s
Cross build (arm-unknown-linux-gnueabihf)	47m 33s
Cross build (hppa-unknown-linux-gnu)	45m 23s
Cross build (aarch64-unknown-linux-gnu)	50m 0s
Cross build (mips-unknown-linux-gnu)	47m 26s
Cross build (mipsel-unknown-linux-gnu)	47m 22s
Cross build (powerpc-unknown-linux-gnu)	45m 17s
Cross build (s390-unknown-linux-gnu)	44m 57s
Cross build (s390x-unknown-linux-gnu)	45m 27s
Cross build (sparc-unknown-linux-gnu)	45m 7s
Cross build (powerpc64le-unknown-linux-gnu)	46m 19s
Cross build (mips64el-unknown-linux-gnuabi64)	47m 42s
	12h 28m 46s

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