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| author | Neels Hofmeyr <neels@hofmeyr.de> | 2016-08-08 15:38:35 +0200 |
|---|---|---|
| committer | Neels Hofmeyr <nhofmeyr@sysmocom.de> | 2016-08-09 14:35:27 +0000 |
| commit | fef2fa224a754df3f9792d1ddcd3a6d9a73658b1 (patch) | |
| tree | c2422c3728219ee88c88ae546ab7c8486fe7ae9d | |
| parent | d1dcda01f8c99e02a206c95d177aecd3dfb66e09 (diff) | |
configure: check for pkg-config presence
On a fresh installation, I was puzzled by a configure.ac 'syntax error' for
PKG_CHECK_MODULES(TALLOC). It took me some time to figure out that merely
pkg-config was missing.
Add a check for pkg-config, which isn't as straightforward as I would wish,
so comment generously.
Change-Id: I2e7cdc37eb59f9947a45fbc5baddbaf71b655bc0
| -rw-r--r-- | configure.ac | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index 33c9b5c2..1b62278f 100644 --- a/configure.ac +++ b/configure.ac @@ -17,6 +17,21 @@ LT_INIT([pic-only disable-static]) AC_CONFIG_MACRO_DIR([m4]) +dnl check for pkg-config +dnl * If pkg-config is missing, we get a "syntax error" for PKG_CHECK_MODULES. +dnl Instead, we want to say that pkg-config and pkg.m4 are missing. +dnl * The proper way is PKG_PROG_PKG_CONFIG() but unfortunately that does not +dnl produce an intelligible error message if pkg-config is missing entirely +dnl ("syntax error near unexpected token `0.20'"). +dnl * To produce a hint that pkg-config is missing, check for the pkg-config +dnl binary; but AC_PATH_PROG breaks if the distribution provides only +dnl prefixed (<arch>-pkg-config) versions, so just print a warning. +AC_PATH_PROG(PKG_CONFIG_INSTALLED, pkg-config, no) +if test "x$PKG_CONFIG_INSTALLED" = "xno"; then + AC_MSG_WARN([You need to install pkg-config]) +fi +PKG_PROG_PKG_CONFIG([0.20]) + dnl check os: some linker flags not available on osx case $host in *-darwin*) |