GitHub Action: could not find native static library `ssl` on windows (mingw/msvc)

[0x676e67]

Investigating the cause — my current guess is that the Rust 1.92 toolchain update is causing the Windows build tests to fail.

Github Action: https://github.com/0x676e67/boring/actions/runs/20169859985/job/57902427447

warning: boring-sys@4.19.0: applying post quantum crypto patch to boringssl
error: could not find native static library `ssl`, perhaps an -L flag is missing?

warning: boring-sys@4.19.0: applying post quantum crypto patch to boringssl
error: could not compile `boring-sys` (lib) due to 1 previous error
warning: build failed, waiting for other jobs to finish...
error: linking with `x86_64-w64-mingw32-gcc` failed: exit code: 1
  |
  = note: "x86_64-w64-mingw32-gcc" "-fno-use-linker-plugin" "-Wl,--dynamicbase" "-Wl,--disable-auto-image-base" "-m64" "-Wl,--high-entropy-va" "C:\\Users\\RUNNER~1\\AppData\\Local\\Temp\\rustcu4CuAG\\symbols.o" "<6 object files omitted>" "-Wl,-Bstatic" "-lcrypto" "-lssl" "-Wl,-Bdynamic" "-ladvapi32" "-Wl,-Bstatic" "<sysroot>\\lib\\rustlib\\x86_64-pc-windows-gnu\\lib/{libtest-*,libgetopts-*,librustc_std_workspace_std-*,libstd-*,libpanic_unwind-*,libobject-*,libmemchr-*,libaddr2line-*,libgimli-*,libcfg_if-*,libwindows_targets-*,librustc_demangle-*,libstd_detect-*,libhashbrown-*,librustc_std_workspace_alloc-*,libminiz_oxide-*,libadler2-*,libunwind-*,liblibc-*,librustc_std_workspace_core-*,liballoc-*,libcore-*,libcompiler_builtins-*}.rlib" "-Wl,-Bdynamic" "-lkernel32" "-lkernel32" "-lkernel32" "-lkernel32" "-lntdll" "-luserenv" "-lws2_32" "-ldbghelp" "-lgcc_eh" "-l:libpthread.a" "-lmsvcrt" "-lmingwex" "-lmingw32" "-lgcc" "-lmsvcrt" "-lmingwex" "-luser32" "-lkernel32" "-Wl,--nxcompat" "-L" "D:\\a\\boring\\boring\\target\\x86_64-pc-windows-gnu\\debug\\build\\boring-sys-98eaf203746c4a49\\out/build/crypto/" "-L" "D:\\a\\boring\\boring\\target\\x86_64-pc-windows-gnu\\debug\\build\\boring-sys-98eaf203746c4a49\\out/build/ssl/" "-L" "D:\\a\\boring\\boring\\target\\x86_64-pc-windows-gnu\\debug\\build\\boring-sys-98eaf203746c4a49\\out/build/" "-L" "D:\\a\\boring\\boring\\target\\x86_64-pc-windows-gnu\\debug\\build\\boring-sys-98eaf203746c4a49\\out/build" "-o" "D:\\a\\boring\\boring\\target\\x86_64-pc-windows-gnu\\debug\\deps\\boring_sys-7d06f3b284d178e6.exe" "-Wl,--gc-sections" "-no-pie" "-nodefaultlibs"
  = note: some arguments are omitted. use `--verbose` to show all linker arguments
  = note: C:/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/15.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: cannot find -lssl: No such file or directory␍
          C:/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/15.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: have you installed the static version of the ssl library ?␍
          collect2.exe: error: ld returned 1 exit status
          

warning: boring-sys@4.19.0: applying post quantum crypto patch to boringssl
error: could not compile `boring-sys` (lib test) due to 1 previous error

After testing, it has been determined that this issue is not related to the update of the Rust 1.92 toolchain.

[0x676e67]

Investigation results: the issue was caused by the cmake 0.1.55 release: https://github.com/rust-lang/cmake-rs/releases/tag/v0.1.55. I reverted it to 0.1.54 and the build/tests passed.

GitHub Action pass: https://github.com/0x676e67/boring/actions/runs/20171557851/job/57908443968

[0x676e67]

This might be related to the "commit": rust-lang/cmake-rs#259