[libsolv] Fix repo2solv with BusyBox. Fixes JB#44370

Busybox got quite confused by "." as arg0.

rpm/0001-Fix-repo2solv-to-work-with-Busybox-find-tool.patch

@@ -0,0 +1,30 @@
+From d2783eab98a0363436c521a679b39070aa7a8a2c Mon Sep 17 00:00:00 2001
+From: Pekka Vuorela <pekka.vuorela@jolla.com>
+Date: Mon, 21 Jan 2019 16:45:04 +0200
+Subject: [PATCH] Fix repo2solv to work with Busybox find tool
+
+Got quite confused by "." as arg0. Added a new instance as first
+real parameter as I could assume that being the original intention.
+---
+ tools/repo2solv.c | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/tools/repo2solv.c b/tools/repo2solv.c
+index e055e408..fb60884b 100644
+--- a/tools/repo2solv.c
++++ b/tools/repo2solv.c
+@@ -169,9 +169,9 @@ read_plaindir_repo(Repo *repo, const char *dir)
+ 	  close(fds[1]);
+ 	}
+       if (recursive)
+-	execl("/usr/bin/find", ".", "-name", ".", "-o", "-name", ".*", "-prune", "-o", "-name", "*.delta.rpm", "-o", "-name", "*.patch.rpm", "-o", "-name", "*.rpm", "-a", "-type", "f", "-print0", (char *)0);
++	execl("/usr/bin/find", "/usr/bin/find", ".", "-name", ".", "-o", "-name", ".*", "-prune", "-o", "-name", "*.delta.rpm", "-o", "-name", "*.patch.rpm", "-o", "-name", "*.rpm", "-a", "-type", "f", "-print0", (char *)0);
+       else
+-	execl("/usr/bin/find", ".", "-maxdepth", "1", "-name", ".", "-o", "-name", ".*", "-prune", "-o", "-name", "*.delta.rpm", "-o", "-name", "*.patch.rpm", "-o", "-name", "*.rpm", "-a", "-type", "f", "-print0", (char *)0);
++	execl("/usr/bin/find", "/usr/bin/find", ".", "-maxdepth", "1", "-name", ".", "-o", "-name", ".*", "-prune", "-o", "-name", "*.delta.rpm", "-o", "-name", "*.patch.rpm", "-o", "-name", "*.rpm", "-a", "-type", "f", "-print0", (char *)0);
+       perror("/usr/bin/find");
+       _exit(1);
+     }
+-- 
+2.20.1
+

rpm/libsolv.spec

@@ -19,6 +19,8 @@ BuildRequires:  swig
 BuildRequires:  cmake
 BuildRequires:  libxml2-devel
 
+Patch1:  0001-Fix-repo2solv-to-work-with-Busybox-find-tool.patch
+
 %description
 A new approach to package dependency solving.
 
@@ -86,6 +88,7 @@ A new approach to package dependency solving.
 
 %prep
 %setup -q -n %{name}-%{version}/upstream
+%patch1 -p1
 
 %build
 %cmake .  \