Robert Paprocki <[email protected]> writes: > Hello, > > I have compiled Nettle 3.3 with GMP 6.1.2 on a variety of systems (various > Ubuntu/Debian distros, CentOS 7, Alpine) with success: > > ###### build nettle > # pwd > /tmp/nettle-3.3 > # CPPFLAGS="-I../gmp-6.1.2/" LDFLAGS="-L../gmp-6.1.2/.libs" ./configure && > make >
Using relative file names for -I and -L won't quite work, since they will point at the wrong place when make is run in subdirectories. > Again this works as expected on a variety of systems, except for CentOS 6 > (using the centos:6 docker image). On CentOS 6 nettle configure fails with > the following: > > checking for GMP limb size... configure: error: in `/tmp/nettle-3.3': > configure: error: cannot find value of GMP_NUMB_BITS > > Full configure output: https://pastebin.com/9s3nfA8G You should check config.log to investigate this kind of problems. My best guess is that the runtime linker can't find libgmp.so, you'd have to either set LD_LIBRARY_PATH, or add something like -Wl,-rpath,/tmp/gmp-6.1.2/... to LDFLAGS, or use --with-lib-path, in which case nettle's configure script will attempt to add the needed linker flags automatically. > Oddly enough, if I install GMP (via 'make install') to a default search > path, configure/make works as expected. The way I'd recommend, is to do a GMP make install with some suitable --prefix (/usr/local, /opt, /tmp/local, $HOME/local, whatever), and configure nettle with --with-include-path and --with-lib-path to point out the install location (using absolute file names). > gcc -I.. -I.. -I../gmp-6.1.2/ -DHAVE_CONFIG_H -g -O2 -ggdb3 > -Wno-pointer-sign -Wall -W -Wmissing-prototypes -Wmissing-declarations > -Wstrict-prototypes -Wpointer-arith -Wbad-function-cast -Wnested-externs > -MT pkcs1-conv.o -MD -MP -MF pkcs1-conv.o.d -c pkcs1-conv.c && true > In file included from ../rsa.h:38, > from pkcs1-conv.c:47: > ../bignum.h:54:18: error: gmp.h: No such file or directory > > Which is very odd because we gmp.h definitely does exist (our gcc call has > the following: -I../gmp-6.1.2/): > > # file ../gmp-6.1.2/gmp.h > ../gmp-6.1.2/gmp.h: ASCII C program text gcc and file are not running with the same working directory, that's why they get different results when attempting to open "../gmp-6.1.2/gmp.h". pkcs1-conv is built in the tools/ subdirectory. Regards, /Niels -- Niels Möller. PGP-encrypted email is preferred. Keyid 368C6677. Internet email is subject to wholesale government surveillance. _______________________________________________ nettle-bugs mailing list [email protected] http://lists.lysator.liu.se/mailman/listinfo/nettle-bugs
