diff --git a/.drone.yml b/.drone.yml
index 528678b..ab02972 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -19,6 +19,21 @@ steps:
       - ls
       - ctest -VV
 
+  - name: test-tcc-compiler
+    image: alpine
+    commands:
+      - apk add gcc g++ cmake make binutils-gold tcc
+      - ls
+      - uname -a
+      - mkdir -p build
+      - cd build
+      # Tests with wchar don't pass
+      - cmake .. -DCMAKE_C_COMPILER=/usr/bin/tcc -DFORT_ENABLE_WCHAR=OFF
+      - cmake --build . --target libfort_test_dev
+      - ./tests/libfort_test_dev
+      - cmake --build . --target libfort_test
+      - ./tests/libfort_test
+
 
 ---
 kind: pipeline
@@ -60,4 +75,4 @@ steps:
       - cmake .. -DCMAKE_BUILD_TYPE=Debug -DCMAKE_C_STANDARD=99 -DCMAKE_CXX_STANDARD=11 -DCMAKE_C_FLAGS="-Werror" -DCMAKE_CXX_FLAGS="-Werror"
       - cmake --build . --target all
       - ls
-      - ctest -VV
\ No newline at end of file
+      - ctest -VV
diff --git a/ChangeLog.md b/ChangeLog.md
index da12e74..dfc14c3 100644
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -7,6 +7,7 @@
 ### Internal
 
 - Fix compilation for compilers other than gcc, clang, msvc.
+- Add build with tcc to CI.
 
 ## v0.3.1
 
diff --git a/lib/fort.c b/lib/fort.c
index 5153a33..1fefa4c 100644
--- a/lib/fort.c
+++ b/lib/fort.c
@@ -439,7 +439,7 @@ extern "C" {
 #define utf8_nonnull
 #define utf8_pure
 #define utf8_restrict
-#define utf8_weak
+#define utf8_weak inline
 #endif
 
 #ifdef __cplusplus
diff --git a/src/utf8.h b/src/utf8.h
index 005e427..b1ec66e 100644
--- a/src/utf8.h
+++ b/src/utf8.h
@@ -74,7 +74,7 @@ extern "C" {
 #define utf8_nonnull
 #define utf8_pure
 #define utf8_restrict
-#define utf8_weak
+#define utf8_weak inline
 #endif
 
 #ifdef __cplusplus