diff --git a/00-fix-gcc-fno-common.patch b/00-fix-gcc-fno-common.patch
new file mode 100644
index 0000000..0541c31
--- /dev/null
+++ b/00-fix-gcc-fno-common.patch
@@ -0,0 +1,28 @@
+Index: src/libmawk/vio_fifo.c
+===================================================================
+diff --git a/src/libmawk/vio_fifo.c b/src/libmawk/vio_fifo.c
+--- a/src/libmawk/vio_fifo.c	(revision 1326)
++++ b/src/libmawk/vio_fifo.c	(revision 1327)
+@@ -10,6 +10,8 @@
+ #include "vio_fifo.h"
+ #include "memory.h"
+ 
++const mawk_vio_imp_t mawk_vio_fifo_imp;
++
+ mawk_vio_t *mawk_vio_fifo_open(mawk_state_t *MAWK, const char *name, mawk_vio_open_mode_t mode)
+ {
+ 	mawk_vio_fifo_t *v;
+Index: src/libmawk/vio_fifo.h
+===================================================================
+diff --git a/src/libmawk/vio_fifo.h b/src/libmawk/vio_fifo.h
+--- a/src/libmawk/vio_fifo.h	(revision 1326)
++++ b/src/libmawk/vio_fifo.h	(revision 1327)
+@@ -14,7 +14,7 @@
+ 	int eof_from_app;       /* 1 if there won't be more from the app or the app won't accept more data */
+ } mawk_vio_fifo_t;
+ 
+-const mawk_vio_imp_t mawk_vio_fifo_imp;
++extern const mawk_vio_imp_t mawk_vio_fifo_imp;
+ 
+ mawk_vio_t *mawk_vio_fifo_open(mawk_state_t *MAWK, const char *name, mawk_vio_open_mode_t mode);
+ 
diff --git a/libmawk.spec b/libmawk.spec
index a86643a..c919164 100644
--- a/libmawk.spec
+++ b/libmawk.spec
@@ -1,12 +1,16 @@
 Name:           libmawk
 Version:        1.0.2
-Release:        3%{?dist}
+Release:        4%{?dist}
 Summary:        Embed awk scripting language in any application written in C
 
 License:        GPLv2
 URL:            http://repo.hu/projects/libmawk
 Source0:        http://repo.hu/projects/libmawk/releases/%{name}-%{version}.tar.gz
 
+# patch source code to avoid multiple definitions of "C tentative definitions"
+# This patch should be removed for next libmawk version packaging, as upstream already implemented it.
+Patch0:         00-fix-gcc-fno-common.patch
+
 BuildRequires:  gcc
 
 %description
@@ -32,11 +36,12 @@ HTML documentation for %{name}.
 
 
 %prep
-%autosetup
+%autosetup -p1
 
 
 %build
-./"configure" --prefix=%{_prefix} --libarchdir=%{_libdir} --symbols \
+# This ./configure command refers to scconfig. See http://repo.hu/projects/scconfig/
+./"configure" --prefix=%{_prefix} --libarchdir=%{_lib} --symbols \
   --CFLAGS="%{build_cflags}" --LDFLAGS="%{build_ldflags}"
 %make_build
 
@@ -48,7 +53,8 @@ HTML documentation for %{name}.
 %files
 %license src/libmawk/COPYING
 %doc AUTHORS README Release_notes
-%{_libdir}/*.so.1*
+%{_libdir}/*.so.1
+%{_libdir}/*.so.1.0*
 %{_bindir}/lmawk
 %dir %{_libdir}/%{name}
 %{_libdir}/%{name}/*.awk
@@ -65,6 +71,10 @@ HTML documentation for %{name}.
 
 
 %changelog
+* Mon Feb 10 2020 Alain <alain vigne 14 AT gmail com> - 1.0.2-4
+- Fix the libdir install, depending on arch
+- Patch source code to comply with gcc -fno-common
+
 * Wed Jan 29 2020 Fedora Release Engineering <releng@fedoraproject.org> - 1.0.2-3
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_32_Mass_Rebuild