Fix DNS uploads in Linux release builds

.github/workflows/release.yml

@@ -86,7 +86,7 @@ jobs:
           make -j3 build_sw
           make install_sw
 
-      - name: Build static Linux executable
+      - name: Build Linux executable with static OpenSSL
         if: startsWith(matrix.target, 'linux-')
         run: |
           OPENSSL_LIBDIR="$(find "$GITHUB_WORKSPACE/openssl-static" -type f -name libssl.a -exec dirname {} \;)"
@@ -96,11 +96,10 @@ jobs:
           fi
           make "${{ matrix.target }}" \
             TLS_CFLAGS="-I$GITHUB_WORKSPACE/openssl-static/include" \
-            TLS_LDLIBS="$OPENSSL_LIBDIR/libssl.a $OPENSSL_LIBDIR/libcrypto.a $EXTRA_STATIC_LIBS" \
+            TLS_LDLIBS="$OPENSSL_LIBDIR/libssl.a $OPENSSL_LIBDIR/libcrypto.a $EXTRA_STATIC_LIBS"
-            LDFLAGS=-static
           file "dist/fossmark-${{ matrix.target }}"
-          if ldd "dist/fossmark-${{ matrix.target }}" 2>&1 | grep -q '=>'; then
+          if ldd "dist/fossmark-${{ matrix.target }}" | grep -E 'lib(ssl|crypto)'; then
-            echo 'Linux release binary is dynamically linked' >&2
+            echo 'Linux release uses dynamic OpenSSL' >&2
             exit 1
           fi
 

README.md

@@ -109,9 +109,11 @@ libc requires POWER6 instructions and produces release binaries that fault on
 the iMac G5's PowerPC 970. Build `linux-ppc64be` natively on the G5 so it uses
 the compatible Arch POWER ELFv2 runtime.
 
-Release binaries statically include OpenSSL. Linux releases are fully static;
+Release binaries statically include OpenSSL. Linux releases dynamically use
-macOS releases retain only Apple's required system-library linkage because the
+the system C library so DNS resolution can safely load the matching NSS
-macOS toolchain does not support fully static executables.
+modules; they do not require system OpenSSL libraries. macOS releases retain
+only Apple's required system-library linkage because the macOS toolchain does
+not support fully static executables.
 
 ## Continuous integration and releases
 

src/main.c

@@ -42,7 +42,7 @@
 #ifndef FM_API_BASE_URL
 #  define FM_API_BASE_URL "https://fossbench.net"
 #endif
-#define FM_VERSION "0.1.3-hotfix2"
+#define FM_VERSION "0.1.3-hotfix3"
 
 /* ---------- platform identification (for the banner only) ---------- */