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Rework the libelf configure checks one more time

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It seems that there is quite a bit of variation out there, in
terms of libelf versions and API. Make the checks more thorough,
by not only checking for elf_begin, but also some of the shdr function
that we need. Also, explicitly check for libelf.h.

This should address bug 673132 and 673253.
This commit is contained in:
Matthias Clasen 2012-04-02 08:53:20 -04:00
parent e51c3b4cfe
commit 27d95bd81f
1 changed files with 14 additions and 4 deletions
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18
configure.ac
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@ -1799,12 +1799,22 @@ dnl ************************
dnl *** check for libelf ***
dnl ************************
PKG_CHECK_MODULES([LIBELF], [libelf], [have_libelf=yes], [
AC_CHECK_LIB([elf], [elf_begin], have_libelf=yes, have_libelf=no)
])
PKG_CHECK_MODULES([LIBELF], [libelf], [have_libelf=yes], [have_libelf=maybe])
if test $have_libelf = maybe; then
AC_CHECK_LIB([elf], [elf_begin], , [have_libelf=no])
AC_CHECK_LIB([elf], [elf_getshdrstrndx], , [have_libelf=no])
AC_CHECK_LIB([elf], [elf_getshdrnum], , [have_libelf=no])
AC_CHECK_HEADER([libelf.h], , [have_libelf=no])
if test $have_libelf != no; then
LIBELF_LIBS=-lelf
have_libelf = yes
fi
fi
if test $have_libelf = yes; then
AC_DEFINE(HAVE_LIBELF, 1, [Define if libelf is available])
LIBELF_LIBS=-lelf
fi
dnl ****************************************