shaarkys:

When building latest trunk :

[ 23%] Linking C executable LIBCURL
/home/machine/lede/source/staging_dir/host/lib/libcrypto.a(getentropy_linux.o): In function getentropy_fallback': getentropy_linux.c:(.text+0x16d): undefined reference to clock_gettime'
getentropy_linux.c:(.text+0x412): undefined reference to clock_gettime' collect2: error: ld returned 1 exit status make[6]: *** [Utilities/cmcurl/LIBCURL] Error 1 make[6]: Leaving directory /home/machine/lede/source/build_dir/host/cmake-3.9.3'
make[5]: *** [Utilities/cmcurl/CMakeFiles/LIBCURL.dir/all] Error 2
make[5]: Leaving directory /home/machine/lede/source/build_dir/host/cmake-3.9.3' make[4]: *** [all] Error 2 make[4]: Leaving directory /home/machine/lede/source/build_dir/host/cmake-3.9.3'
make[3]: *** [/home/machine/lede/source/build_dir/host/cmake-3.9.3/.built] Error 2
make[3]: Leaving directory /home/machine/lede/source/tools/cmake' make[2]: *** [tools/cmake/compile] Error 2 make[2]: Leaving directory /home/machine/lede/source'
make[1]: *** [/home/machine/lede/source/staging_dir/target-mips_24kc_musl/stamp/.tools_compile_yynyyyyyynyyyyynyynnyyyyyyyyyyyyyyyyyyyynyynynyyyynny] Error 2
make[1]: Leaving directory `/home/machine/lede/source'
make: *** [world] Error 2

When reverting https://git.lede-project.org/?p=source.git;a=commitdiff;h=839129b86453f0b0b2b47dac5502ecc3dae7ffb3 it builds fine.
Also I'm not an expert, but is 130-curl-fix-libressl-linking.patch in the right structure ? (it contains mail headers)