[Buildroot] [PATCH] package/sg3_utils: fix uclinux build

[Yann E. MORIN]

sg3_utils grep for '^linux' as the host OS to decide if we are
targetting Linux.

However, on noMMU targets, the host OS can be 'uclinux' instead of just
plain 'linux', which make sg3_util confused and thus it forgets to
include soem source fiels in the build, resulting in link failures.

Fix that by ammending the regexp that recognises Linux. WE now need to
run autoreconf.

Fixes:
    http://autobuild.buildroot.org/results/79a/79a572f67bafa6a007256a5f22529c2daabd5733/
    http://autobuild.buildroot.org/results/4f7/4f7ea4bb4c4c12ceb9cd08bfb6720386f5bdea0b/

Signed-off-by: "Yann E. MORIN" <yann.morin.1998 at free.fr>
---
 package/sg3_utils/0001-support-uclinux-as-a-linux.patch | 16 ++++++++++++++++
 package/sg3_utils/sg3_utils.mk                          |  3 +++
 2 files changed, 19 insertions(+)
 create mode 100644 package/sg3_utils/0001-support-uclinux-as-a-linux.patch

diff --git a/package/sg3_utils/0001-support-uclinux-as-a-linux.patch b/package/sg3_utils/0001-support-uclinux-as-a-linux.patch
new file mode 100644
index 0000000..99937e5
--- /dev/null
+++ b/package/sg3_utils/0001-support-uclinux-as-a-linux.patch
@@ -0,0 +1,16 @@
+Recognise uclinuc as a linux
+
+Signed-off-by: "Yann E. MORIN" <yann.morin.1998 at free.fr>
+
+diff -durN sg3_utils-1.42.orig/configure.ac sg3_utils-1.42/configure.ac
+--- sg3_utils-1.42.orig/configure.ac	2015-10-21 01:10:59.000000000 +0200
++++ sg3_utils-1.42/configure.ac	2016-08-14 19:30:37.841766149 +0200
+@@ -71,7 +71,7 @@
+ 
+ # Define platform-specific symbol.
+ AM_CONDITIONAL(OS_FREEBSD, [echo $host_os | grep 'freebsd' > /dev/null])
+-AM_CONDITIONAL(OS_LINUX, [echo $host_os | grep '^linux' > /dev/null])
++AM_CONDITIONAL(OS_LINUX, [echo $host_os | grep -E '^(uc)?linux' > /dev/null])
+ AM_CONDITIONAL(OS_OSF, [echo $host_os | grep '^osf' > /dev/null])
+ AM_CONDITIONAL(OS_SOLARIS, [echo $host_os | grep '^solaris' > /dev/null])
+ AM_CONDITIONAL(OS_WIN32_MINGW, [echo $host_os | grep '^mingw' > /dev/null])
diff --git a/package/sg3_utils/sg3_utils.mk b/package/sg3_utils/sg3_utils.mk
index 36cb32e..e7af83a 100644
--- a/package/sg3_utils/sg3_utils.mk
+++ b/package/sg3_utils/sg3_utils.mk
@@ -14,6 +14,9 @@ SG3_UTILS_LICENSE += GPLv2+
 endif
 SG3_UTILS_LICENSE_FILES = COPYING BSD_LICENSE
 
+# Patching configure.ac
+SG3_UTILS_AUTORECONF = YES
+
 # install the libsgutils2 library
 SG3_UTILS_INSTALL_STAGING = YES
 
-- 
2.7.4