Tim Ruffing 07256267ff build: Use own variable SECP_CFLAGS instead of touching user CFLAGS ...

Fixes one of the items in #923, namely the warnings of the form
    '_putenv' redeclared without dllimport attribute:
    previous dllimport ignored [-Wattributes]

This also cleans up the way we add CFLAGS, in particular flags enabling
warnings. Now we perform some more fine-grained checking for flag
support, which is not strictly necessary but the changes also help to
document autoconf.ac.

2021-07-01 19:58:44 +02:00

..

ax_prog_cc_for_build.m4

Fix insecure links

2020-12-18 00:24:22 +02:00

bitcoin_secp.m4

build: Use own variable SECP_CFLAGS instead of touching user CFLAGS

2021-07-01 19:58:44 +02:00