| From c154195fa161575363280aac9e928b7225f0de9e Mon Sep 17 00:00:00 2001 |
| From: "Yann E. MORIN" <yann.morin.1998@free.fr> |
| Date: Sun, 29 Dec 2019 17:42:13 +0100 |
| Subject: [PATCH] configure: fix detection of fltk libs |
| |
| Chaining calls to AC_CHECK_LIB one in the other, breaks the configure |
| script, because some internal functions (e.g. ac_fn_c_try_link) would |
| not be defined before they are needed, leading the build to fail as |
| thus: |
| |
| checking for snd_tplg_new in -latopology... ./configure: line 4630: |
| ac_fn_c_try_link: command not found |
| no |
| configure: error: No linkable libatopology was found. |
| |
| Using AC_CHECK_LIB() in sequence (i.e. one after the other) and |
| memorising the result is not trivial: AC_CHECK_LIB() implements a |
| ddefault action-if-found that append to LIBS, but not if the user |
| ptrovides their own action-if-found. |
| |
| Instead, AC_SEARH_LIBS() always append to LIBS, *and* run the |
| user-provided action. |
| |
| So, we switch to AC_SEARCH_LIBS() and memorise the result for each |
| test, to eventually test if ether worked. |
| |
| Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr> |
| --- |
| configure.in | 8 ++++---- |
| 1 file changed, 4 insertions(+), 4 deletions(-) |
| |
| diff --git a/configure.in b/configure.in |
| index 9307cc2..55f6864 100644 |
| --- a/configure.in |
| +++ b/configure.in |
| @@ -11,10 +11,10 @@ AC_PROG_INSTALL |
| AC_PROG_LN_S |
| |
| dnl Checks for libraries. |
| -AC_CHECK_LIB(fltk,numericsort,, |
| -AC_CHECK_LIB(fltk,fl_numericsort,, |
| -AC_MSG_ERROR("missing fltk")) |
| -) |
| +has_fltk=false |
| +AC_SEARCH_LIBS(numericsort,fltk,has_fltk=true) |
| +AC_SEARCH_LIBS(fl_numericsort,fltk,has_fltk=true) |
| +AS_IF(test "${has_fltk}" = "false", AC_MSG_ERROR("missing fltk")) |
| AM_PATH_ALSA(0.9.0) |
| |
| dnl Checks for header files. |
| -- |
| 2.20.1 |
| |
