diff --git a/extend-fdesc-array.patch b/extend-fdesc-array.patch
new file mode 100644
index 0000000..4729057
--- /dev/null
+++ b/extend-fdesc-array.patch
@@ -0,0 +1,11 @@
+--- psm_utils.c.orig	2018-03-14 21:12:33.678607767 -0400
++++ psm_utils.c	2018-03-14 21:11:04.696909162 -0400
+@@ -951,7 +951,7 @@ struct psmi_faultinj_spec *psmi_faultinj
+ 		union psmi_envvar_val env_fi;
+ 		char fvals_str[128];
+ 		char fname[128];
+-		char fdesc[256];
++		char fdesc[512];
+ 
+ 		snprintf(fvals_str, sizeof(fvals_str) - 1, "%d:%d:1", num,
+ 			 denom);
diff --git a/libpsm2.spec b/libpsm2.spec
index 2775a4d..f71df05 100644
--- a/libpsm2.spec
+++ b/libpsm2.spec
@@ -53,7 +53,7 @@
 Summary: Intel PSM Libraries
 Name: libpsm2
 Version: 10.3.8
-Release: 4%{?dist}
+Release: 5%{?dist}
 License: BSD or GPLv2
 URL: https://github.com/01org/opa-psm2/
 
@@ -63,6 +63,7 @@ URL: https://github.com/01org/opa-psm2/
 # git checkout a96419140a6942a11a1438bbffc4c27475d61030
 # make dist
 Source0: %{name}-%{version}.tar.gz
+Patch1:  extend-fdesc-array.patch
 
 # The OPA product is supported on x86 64 only:
 ExclusiveArch: x86_64
@@ -101,9 +102,10 @@ Support for MPIs linked with PSM versions < 2
 
 %prep
 %setup -q
+%patch1 -p0
 
 %build
-export CFLAGS="%{optflags}"
+%{set_build_flags}
 make %{?_smp_mflags}
 
 %install
@@ -140,6 +142,11 @@ make %{?_smp_mflags}
 %endif
 
 %changelog
+* Thu Mar 15 2018 - 10.3.8-5
+- Fix partial injection of Fedora build flags.
+- Double the sizeof array fdesc to fix a gcc compiling issue.
+- Resolves: bz1556062
+
 * Wed Feb 07 2018 Fedora Release Engineering <releng@fedoraproject.org> - 10.3.8-4
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_28_Mass_Rebuild