How to add include and lib paths to configure make cycle

Question

I need a place to install libraries in a linux box I have no su access to  I m using   local  bin  lib  include   but I don t know how can I tell   configure to look for libraries there  particularly  I m trying to compile emacs  which needs libgif  which doesn t come in my distro    I tried adding  export PATH  PATH   local bin export LD LIBRARY PATH   local lib export C INCLUDE PATH   local include export CPLUS INCLUDE PATH   local include   to  bashrc but it doesn t seem to work

User · Answer

Set LDFLAGS and CFLAGS when you run make:

$ LDFLAGS="-L/home/me/local/lib" CFLAGS="-I/home/me/local/include" make

If you don't want to do that a gazillion times, export these in your .bashrc (or your shell equivalent). Also set LD_LIBRARY_PATH to include /home/me/local/lib:

export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/home/me/local/lib

User · Answer

You want a config site file   Try      mkdir -p   local share   cat  lt  lt  EOF  gt    local share config site CPPFLAGS -I HOME local include LDFLAGS -L HOME local lib     EOF   Whenever you invoke an autoconf generated configure script with --prefix  HOME local  the config site will be read and all the assignments will be made for you   CPPFLAGS and LDFLAGS should be all you need  but you can make any other desired assignments as well  hence the     in the sample above    Note that -I flags belong in CPPFLAGS and not in CFLAGS  as -I is intended for the pre-processor and not the compiler

User · Answer

This took a while to get right  I had this issue when cross-compiling in Ubuntu for an ARM target  I solved it with   PATH  PATH  ccpath bin CC ccname-gcc AR ccname-ar LD ccname-ld CPPFLAGS  -nostdinc -I ccrootfs usr include      LDFLAGS -L ccrootfs usr lib   autogen sh --build  config guess  --host armv5tejl-unknown-linux-gnueabihf   Notice CFLAGS is not used with autogen sh configure  using it gave me the error   configure  error  C compiler cannot create executables   In the build environment I was using an autogen sh script was provided  if you don t have an autogen sh script substitute   autogen sh with   configure in the command above  I ran config guess on the target system to get the --host parameter   After successfully running autogen sh configure  compile with   PATH  PATH  ccpath bin CC ccname-gcc AR ccname-ar LD ccname-ld CPPFLAGS  -nostdinc -I ccrootfs usr include      LDFLAGS -L ccrootfs usr lib CFLAGS  -march     -mcpu     etc   make   The CFLAGS I chose to use were   -march armv5te -fno-tree-vectorize -mthumb-interwork -mcpu arm926ej-s   It will take a while to get all of the include directories set up correctly  you might want some includes pointing to your cross-compiler and some pointing to your root file system includes  and there will likely be some conflicts    I m sure this is not the perfect answer  And I am still seeing some include directories pointing to   and not  ccrootfs in the Makefiles  Would love to know how to correct this  Hope this helps someone

[bash] How to add include and lib paths to configure/make cycle?

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