Description of problem: Compiling without export NSS_ENABLE_ECC=1 fails On rawhide it works, but it turns out ECC code is compiled in, and the tool ecperf is compiled and packaged. While not a big problem, the reason I found this bug is that I wanted to compile this on older versions of fedora where there truly no openssl ECC support, and then compilation fails on: ecperf.c: In function 'main': ecperf.c:282:66: error: 'ec_field_plain' undeclared (first use in this function) rv = ectest_curve_freebl(name_v, iterations, numThreads, ec_field_plain); \ ^ ecperf.c:716:9: note: in expansion of macro 'ECTEST_NAMED_CUSTOM' ECTEST_NAMED_CUSTOM("Curve25519", ECCurve25519); ^ ecperf.c:282:66: note: each undeclared identifier is reported only once for each function it appears in rv = ectest_curve_freebl(name_v, iterations, numThreads, ec_field_plain); \ ^ ecperf.c:716:9: note: in expansion of macro 'ECTEST_NAMED_CUSTOM' ECTEST_NAMED_CUSTOM("Curve25519", ECCurve25519); ^ ../../coreconf/rules.mk:392: recipe for target 'Linux4.0_x86_64_cc_glibc_PTH_64_OPT.OBJ/ecperf.o' failed make[2]: *** [Linux4.0_x86_64_cc_glibc_PTH_64_OPT.OBJ/ecperf.o] Error 1 Which leads me to believe there might be ECC code compiled in even when not setting NSS_ENABLE_ECC
Paul, I believe it's no longer required to set NSS_ENABLE_ECC, and it's indeed enabled by default. The bug contains too little specific information to help you.
Patching so ecperf and fbectest are unset in nss/cmd/Makefile got my further but compiling still fails trying to bring in ECC code. Setting NSS_DISABLE_ECC=1 did not work, and adding -DNSS_DISABLE_ECC=1 via XCFLAGS="$RPM_OPT_FLAGS -DNSS_DISABLE_ECC=1" in the spec file failed showing it still linked in ECC parts: Linux4.0_x86_64_cc_glibc_PTH_64_OPT.OBJ/Linux_SINGLE_SHLIB/ldvector.o:(.data.rel.ro.vector+0x6b8): undefined reference to `EC_GetPointSize' collect2: error: ld returned 1 exit status ../../coreconf/rules.mk:289: recipe for target 'Linux4.0_x86_64_cc_glibc_PTH_64_OPT.OBJ/Linux_SINGLE_SHLIB/libfreeblpriv3.so' failed make[3]: *** [Linux4.0_x86_64_cc_glibc_PTH_64_OPT.OBJ/Linux_SINGLE_SHLIB/libfreeblpriv3.so] Error 1 make[3]: Leaving directory '/root/rpmbuild/BUILD/nss-softokn-3.29.1/nss/lib/freebl'
This bug appears to have been reported against 'rawhide' during the Fedora 27 development cycle. Changing version to '27'.
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NSS_DISABLE_ECC was also removed around that time and has no effect these days: https://hg.mozilla.org/projects/nss/rev/69242366eb81 https://hg.mozilla.org/projects/nss/rev/a4d29d214611 Closing this as not a bug.