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When cross-compiling curl 7.69.0 with autoconf master, the build fails:
The build works fine with autoconf 2.69. This is OpenEmbedded, cross-compiling using gcc to a Linux platform.
I filed https://savannah.gnu.org/support/?110213 to get support from the autoconf side.
Pasting the digging I've done so far:
It fails like this:
Yes, I'm cross-compiling, but the invocation of
Adding some echos, CURL_CHECK_COMPILER succeeds but it never actually calls into the body of CURL_SET_COMPILER_BASIC_OPTS. The generated code looks like this:
Which is the beginning of CURL_SET_COMPILER_BASIC_OPTS . That eventually calls CURL_COMPILER_WORKS_IFELSE which has a AC_RUN_IFELSE wrapper without the cross-compiling fallback, but it is guarded with a $cross_compiling test.
Does autoconf now detect calls to AC_RUN_IFELSE without an if-cross-compiling option and abort ahead of time? If so, this breaks people who guard AC_RUN_IFELSE themselves, correct?
Solved! From that bug report:
I can confirm that removing that