[Buildroot] [PATCH 1/1] package/linux-pam: fix build with uclibc

[Yann E. MORIN <yann.morin.1998@free.fr>]

Fabrice, All,

On 2020-06-11 13:28 +0200, Fabrice Fontaine spake thusly:
> Fixes:
>  - http://autobuild.buildroot.org/results/92b3dd7c984d2b843ac9aacacd69eec99f28743e
> 
> Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>

Applied to master.

WE however have a whole lot of other failures on musl:

    pam_faillock.c: In function 'check_local_user':
    pam_faillock.c:365:10: warning: implicit declaration of function 'fgetpwent_r'; did you mean 'fgetpwent'? [-Wimplicit-function-declaration]
       errn = fgetpwent_r(fp, &pw, buf, sizeof (buf), &pwp);
              ^~~~~~~~~~~
              fgetpwent

Care to have a look in those, please?

Regards,
Yann E. MORIN.

> ---
>  ...when-crypt-does-not-require-libcrypt.patch | 37 +++++++++++++++++++
>  package/linux-pam/linux-pam.mk                |  2 +
>  2 files changed, 39 insertions(+)
>  create mode 100644 package/linux-pam/0001-configure-ac-fix-build-failure-when-crypt-does-not-require-libcrypt.patch
> 
> diff --git a/package/linux-pam/0001-configure-ac-fix-build-failure-when-crypt-does-not-require-libcrypt.patch b/package/linux-pam/0001-configure-ac-fix-build-failure-when-crypt-does-not-require-libcrypt.patch
> new file mode 100644
> index 0000000000..ebcb81aa91
> --- /dev/null
> +++ b/package/linux-pam/0001-configure-ac-fix-build-failure-when-crypt-does-not-require-libcrypt.patch
> @@ -0,0 +1,37 @@
> +From aef363c7e8e942224e6cffc4398366c6e5d31749 Mon Sep 17 00:00:00 2001
> +From: Fabrice Fontaine <fontaine.fabrice@gmail.com>
> +Date: Thu, 11 Jun 2020 00:04:32 +0200
> +Subject: [PATCH] configure.ac: fix build failure when crypt() does not require
> + libcrypt
> +
> +Since commit 522246d20e4cd92fadc2d760228cb7e78cbeb4c5, the build fails
> +if "none required" is returned by AC_SEARCH_LIBS for libcrypt.
> +
> +Resolves: https://github.com/linux-pam/linux-pam/pull/235
> +Fixes: http://autobuild.buildroot.org/results/92b3dd7c984d2b843ac9aacacd69eec99f28743e
> +Fixes: v1.4.0~228 ("Use cached 'crypt' library result correctly")
> +
> +Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
> +[Retrieved from:
> +https://github.com/linux-pam/linux-pam/commit/aef363c7e8e942224e6cffc4398366c6e5d31749]
> +---
> + configure.ac | 6 +++++-
> + 1 file changed, 5 insertions(+), 1 deletion(-)
> +
> +diff --git a/configure.ac b/configure.ac
> +index ea08a7a3..c1862ea7 100644
> +--- a/configure.ac
> ++++ b/configure.ac
> +@@ -428,7 +428,11 @@ AS_IF([test "x$ac_cv_header_xcrypt_h" = "xyes"],
> +   [crypt_libs="crypt"])
> + 
> + BACKUP_LIBS=$LIBS
> +-AC_SEARCH_LIBS([crypt],[$crypt_libs], LIBCRYPT="${ac_cv_search_crypt}", LIBCRYPT="")
> ++AC_SEARCH_LIBS([crypt],[$crypt_libs])
> ++case "$ac_cv_search_crypt" in
> ++	-l*) LIBCRYPT="$ac_cv_search_crypt" ;;
> ++	*) LIBCRYPT="" ;;
> ++esac
> + AC_CHECK_FUNCS(crypt_r crypt_gensalt_r)
> + LIBS=$BACKUP_LIBS
> + AC_SUBST(LIBCRYPT)
> diff --git a/package/linux-pam/linux-pam.mk b/package/linux-pam/linux-pam.mk
> index 8f8d575102..57fb2c9cfd 100644
> --- a/package/linux-pam/linux-pam.mk
> +++ b/package/linux-pam/linux-pam.mk
> @@ -20,6 +20,8 @@ LINUX_PAM_DEPENDENCIES = flex host-flex host-pkgconf \
>  	$(TARGET_NLS_DEPENDENCIES)
>  LINUX_PAM_LICENSE = BSD-3-Clause
>  LINUX_PAM_LICENSE_FILES = Copyright
> +# We're patching configure.ac
> +LINUX_PAM_AUTORECONF = YES
>  LINUX_PAM_MAKE_OPTS += LIBS=$(TARGET_NLS_LIBS)
>  
>  ifeq ($(BR2_PACKAGE_LIBSELINUX),y)
> -- 
> 2.26.2
> 
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