[Buildroot] [PATCH v2] package/fakeroot: fix glibc detection on patch for new wrappers

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

Ryan, All,

On 2021-02-21 16:38 -0600, Ryan Barnett spake thusly:
> Commit f45925a951318e9e53bead80b363e004301adc6f add the patch:
> 
> 0003-libfakeroot.c-add-wrappers-for-new-glibc-2.33-symbol.patch
> 
> which allowed fakeroot to be compiled with GLIBC 2.33 or above.
> However, this introduce a bug for building with a non-GLIBC based
> toolchain as a GLIBC macro - __GLIBC_PREREQ - is used on the same line
> as the detection of GLIBC.
> 
> Fix this by backporting the fix to this incorrect macro from upstream
> commit:
> 
> https://salsa.debian.org/clint/fakeroot/-/commit/8090dffdad8fda86dccd47ce7a7db8840bdf7d7b
> 
> CC: Yann E. MORIN <yann.morin.1998@free.fr>
> Signed-off-by: Ryan Barnett <ryanbarnett3@gmail.com>

Applied to master, thanks.

Regards,
Yann E. MORIN.

> ---
> v1 -> v2:
>  - added patch as standalone patch (suggested by Yann)
> ---
>  .../0005-fix-build-regression-on-macOS.patch  | 64 +++++++++++++++++++
>  1 file changed, 64 insertions(+)
>  create mode 100644 package/fakeroot/0005-fix-build-regression-on-macOS.patch
> 
> diff --git a/package/fakeroot/0005-fix-build-regression-on-macOS.patch b/package/fakeroot/0005-fix-build-regression-on-macOS.patch
> new file mode 100644
> index 0000000000..71152b850d
> --- /dev/null
> +++ b/package/fakeroot/0005-fix-build-regression-on-macOS.patch
> @@ -0,0 +1,64 @@
> +From 3590b817df703a256f2c1de9a5f5469eaa1c86e9 Mon Sep 17 00:00:00 2001
> +From: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com>
> +Date: Mon, 15 Feb 2021 11:07:56 -0800
> +Subject: [PATCH] fix build regression on macOS
> +
> +Backported from: 8090dffdad8fda86dccd47ce7a7db8840bdf7d7b
> +
> +Signed-off-by: Felix Fietkau <nbd@nbd.name>
> +Signed-off-by: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com>
> +Signed-off-by: Ryan Barnett <ryanbarnett3@gmail.com>
> +---
> + configure.ac  | 6 ++++++
> + libfakeroot.c | 4 +++-
> + 2 files changed, 9 insertions(+), 1 deletion(-)
> +
> +diff --git a/configure.ac b/configure.ac
> +index d85566f..d635df1 100644
> +--- a/configure.ac
> ++++ b/configure.ac
> +@@ -181,6 +181,9 @@ AC_MSG_CHECKING([for type of arg of __xmknod])
> +        #include <fcntl.h>
> +        #include <unistd.h>
> +   ]], [[
> ++#ifndef __GLIBC__
> ++#error no extra *
> ++#endif
> +        int __xmknod  ( int ver,
> +                        const char *pathname ,
> +                        mode_t  mode ,  dev_t *dev);
> +@@ -207,6 +210,9 @@ AC_MSG_CHECKING([for type of arg of __xmknodat])
> +        #include <fcntl.h>
> +        #include <unistd.h>
> +   ]], [[
> ++#ifndef __GLIBC__
> ++#error no extra *
> ++#endif
> +        int __xmknodat  ( int ver,
> +                          int dirfd,
> +                          const char *pathname ,
> +diff --git a/libfakeroot.c b/libfakeroot.c
> +index d75c51f..ec4e577 100644
> +--- a/libfakeroot.c
> ++++ b/libfakeroot.c
> +@@ -1352,7 +1352,8 @@ int renameat(int olddir_fd, const char *oldpath,
> + #endif /* HAVE_FSTATAT */
> + 
> + 
> +-#if defined(__GLIBC__) && __GLIBC_PREREQ(2,33)
> ++#if defined(__GLIBC__)
> ++#if __GLIBC_PREREQ(2,33)
> + /* Glibc 2.33 exports symbols for these functions in the shared lib */
> +   int lstat(const char *file_name, struct stat *statbuf) {
> +      return WRAP_LSTAT LSTAT_ARG(_STAT_VER, file_name, statbuf);
> +@@ -1397,6 +1398,7 @@ int renameat(int olddir_fd, const char *oldpath,
> +        return WRAP_MKNODAT MKNODAT_ARG(_STAT_VER, dir_fd, pathname, mode, &dev);
> +     }
> +   #endif
> ++#endif /* __GLIBC__ */
> + #endif /* GLIBC_PREREQ */
> + 
> + 
> +-- 
> +2.25.1
> +
> -- 
> 2.25.1
> 
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