Interesting. I'm using AX_PTHREAD and I never thought of that. Searching web shows that apr-util, though not using autoconf, prints this during configure:
adding "-pthread" to CFLAGS adding "-D_REENTRANT" to CPPFLAGS So maybe AX_PTHREAD is doing wrong. Would it harm, if -pthread was added to both variables? Doesn't seem so. 12.07.2018 18:51, Dudziak Krzysztof пишет: > Hi, > For makefiles which build piece of software in two separate steps: > compilation then linking, > will it be better to attach PTHREAD_CFLAGS to higher-level_CPPFLAGS than to > higher-level_CFLAGS variable? > Autotools along with libtool are used here, user-level variables (CFLAGS, > CPPFLAGS) are not manipulated through whole build chain. > I can manipulate variables only at Makefile.am -level. > > I learned gcc expects -pthread option which translates among others to some > preprocessor define, > therefore I wonder if it won't be better to attach PTHREAD_CFLAGS to > higher-level_CPPFLAGS rather than > to higher-level_CFLAGS. > > Regarding PTHREAD_CFLAGS the AC_PTHREAD manual talks about CFLAGS, not about > CPPFLAGS. > I guess attaching to ..._CFLAGS would be fine if building is made in one > single step. > > Thanks > ________________________________ > This message and any attachments are intended solely for the addressees and > may contain confidential information. Any unauthorized use or disclosure, > either whole or partial, is prohibited. > E-mails are susceptible to alteration. Our company shall not be liable for > the message if altered, changed or falsified. If you are not the intended > recipient of this message, please delete it and notify the sender. > Although all reasonable efforts have been made to keep this transmission free > from viruses, the sender will not be liable for damages caused by a > transmitted virus. >
