On Thu, 1 Nov 2012, Leek, Jim wrote:
I'm using libtool 2.4.2 on IBM's BG/Q platform with the xlC compiler. In general it is working fairly well, but I have one issue. Unlike most Linux systems, on BG/Q static linking is the default, and in order to link an executable dynamically you must pass the flags: -qnostaticlink -qnostaticlink=libgccSo, the library builds both statically and dynamically just fine, but when I try to build the test binary, libtool does not pass those two flags, so the binary build fails. If I copy the build line and add the two flags, the binary links dynamically. How can I get libtool to pass those flags only when I want to build the binary dynamically? So far I've only found the place where I can put flags to make libtool build the binary statically.
I don't know anything about IBM's BG/Q platform, but under AIX I always use
./configure CXXFLAGS='-brtl 'LDFLAGS='-brtl' in order for behavior to be more like Linux and Solaris. You might obtain some joy from 'LDFLAGS=-Wl,-qnostaticlink -Wl,-qnostaticlink=libgcc' Bob -- Bob Friesenhahn bfrie...@simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/ GraphicsMagick Maintainer, http://www.GraphicsMagick.org/
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