diff -Nru fmtlib-5.2.1+ds/debian/changelog fmtlib-5.2.1+ds/debian/changelog
--- fmtlib-5.2.1+ds/debian/changelog	2018-12-15 16:30:30.000000000 +0000
+++ fmtlib-5.2.1+ds/debian/changelog	2019-02-16 17:50:37.000000000 +0000
@@ -1,3 +1,11 @@
+fmtlib (5.2.1+ds-2) unstable; urgency=low
+
+  * debian/patches:
+    - 0017-test-assert-test-fix-typo-in-else-branch-of-EXPECT_D: fix building
+      conditional death tests on non-Linux platforms.
+
+ -- Eugene V. Lyubimkin <jackyf@debian.org>  Sat, 16 Feb 2019 18:50:37 +0100
+
 fmtlib (5.2.1+ds-1) unstable; urgency=low
 
   * New upstream release.
diff -Nru fmtlib-5.2.1+ds/debian/patches/0017-test-assert-test-fix-typo-in-else-branch-of-EXPECT_D.patch fmtlib-5.2.1+ds/debian/patches/0017-test-assert-test-fix-typo-in-else-branch-of-EXPECT_D.patch
--- fmtlib-5.2.1+ds/debian/patches/0017-test-assert-test-fix-typo-in-else-branch-of-EXPECT_D.patch	1970-01-01 00:00:00.000000000 +0000
+++ fmtlib-5.2.1+ds/debian/patches/0017-test-assert-test-fix-typo-in-else-branch-of-EXPECT_D.patch	2019-02-16 17:50:37.000000000 +0000
@@ -0,0 +1,22 @@
+From: Ievgen Liubymkin <jackyf@iki.fi>
+Date: Sat, 16 Feb 2019 17:49:17 +0100
+Subject: test: assert-test: fix typo in else-branch of
+ EXPECT_DEBUG_DEATH_IF_SUPPORTED
+
+---
+ test/assert-test.cc | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/test/assert-test.cc b/test/assert-test.cc
+index db2a6a8..81086df 100644
+--- a/test/assert-test.cc
++++ b/test/assert-test.cc
+@@ -13,7 +13,7 @@
+     EXPECT_DEBUG_DEATH(statement, regex)
+ #else
+ # define EXPECT_DEBUG_DEATH_IF_SUPPORTED(statement, regex) \
+-    GTEST_UNSUPPORTED_DEATH_TEST_(statement, regex, )
++    GTEST_UNSUPPORTED_DEATH_TEST(statement, regex, )
+ #endif
+ 
+ TEST(AssertTest, Fail) {
diff -Nru fmtlib-5.2.1+ds/debian/patches/series fmtlib-5.2.1+ds/debian/patches/series
--- fmtlib-5.2.1+ds/debian/patches/series	2018-12-15 16:30:30.000000000 +0000
+++ fmtlib-5.2.1+ds/debian/patches/series	2019-02-16 17:50:37.000000000 +0000
@@ -14,3 +14,4 @@
 0014-doc-index-removed-GitHub-iframe.patch
 0015-doc-build-disable-Doxygen-full-path-names.patch
 0016-doc-build-explicitly-use-python3.patch
+0017-test-assert-test-fix-typo-in-else-branch-of-EXPECT_D.patch