diff --git a/examples/mip-tap/Makefile b/examples/mip-tap/Makefile
index b8271495..f03a8f94 100644
--- a/examples/mip-tap/Makefile
+++ b/examples/mip-tap/Makefile
@@ -7,6 +7,9 @@ CFLAGS = -W -Wall -Wextra -g -I.  # Build options
 # Mongoose build options. See https://mongoose.ws/documentation/#build-options
 CFLAGS_MONGOOSE += -DMG_ENABLE_LINES=1 -DMG_ENABLE_TCPIP=1 -DMG_ENABLE_SOCKET=0 -DMG_ENABLE_PACKED_FS=1
 
+# Example specific build options. See README.md
+CFLAGS += -DHTTP_URL=\"http://0.0.0.0/\"
+
 ifeq ($(OS),Windows_NT)   # Windows settings. Assume MinGW compiler. To use VC: make CC=cl CFLAGS=/MD OUT=/Feprog.exe
   PROG ?= example.exe           # Use .exe suffix for the binary
   CC = gcc                      # Use MinGW gcc compiler
diff --git a/examples/rp2040/pico-rndis-dashboard/CMakeLists.txt b/examples/rp2040/pico-rndis-dashboard/CMakeLists.txt
index e8bdcb99..14545da3 100644
--- a/examples/rp2040/pico-rndis-dashboard/CMakeLists.txt
+++ b/examples/rp2040/pico-rndis-dashboard/CMakeLists.txt
@@ -29,5 +29,8 @@ add_definitions(-DMG_ENABLE_PACKED_FS=1)
 add_definitions(-DMG_ENABLE_FILE=0)
 add_definitions(-DDISABLE_ROUTING=1)
 
+# Example build options
+add_definitions(-DHTTP_URL="http://0.0.0.0/")
+
 # Extra build flags (enable if needed)
 add_definitions(-DDUAL_CONFIG=0)
diff --git a/examples/rp2040/pico-w5500/CMakeLists.txt b/examples/rp2040/pico-w5500/CMakeLists.txt
index 077f8b01..6f3ef30d 100644
--- a/examples/rp2040/pico-w5500/CMakeLists.txt
+++ b/examples/rp2040/pico-w5500/CMakeLists.txt
@@ -22,3 +22,7 @@ add_definitions(-DMG_ENABLE_PACKED_FS=1)
 add_definitions(-DMG_ENABLE_MBEDTLS=0) # TODO(cpq): enable
 add_definitions(-DMG_ENABLE_CUSTOM_RANDOM=1)
 add_definitions(-DMG_ENABLE_FILE=0)
+
+# Example build options
+add_definitions(-DHTTP_URL="http://0.0.0.0/")
+add_definitions(-DHTTPS_URL="https://0.0.0.0/")
diff --git a/examples/stm32/nucleo-f429zi-baremetal/Makefile b/examples/stm32/nucleo-f429zi-baremetal/Makefile
index 76eb7165..213971ab 100644
--- a/examples/stm32/nucleo-f429zi-baremetal/Makefile
+++ b/examples/stm32/nucleo-f429zi-baremetal/Makefile
@@ -13,6 +13,9 @@ SOURCES += mongoose.c net.c packed_fs.c
 CFLAGS += -DMG_ENABLE_TCPIP=1 -DMG_ARCH=MG_ARCH_NEWLIB -DMG_ENABLE_CUSTOM_MILLIS=1
 CFLAGS += -DMG_ENABLE_CUSTOM_RANDOM=1 -DMG_ENABLE_PACKED_FS=1 $(CFLAGS_EXTRA)
 
+# Example specific build options. See README.md
+CFLAGS += -DHTTP_URL=\"http://0.0.0.0/\"
+
 ifeq ($(OS),Windows_NT)
   RM = cmd /C del /Q /F /S
 else
diff --git a/examples/stm32/nucleo-f429zi-freertos/Makefile b/examples/stm32/nucleo-f429zi-freertos/Makefile
index 0d99378f..87f204bc 100644
--- a/examples/stm32/nucleo-f429zi-freertos/Makefile
+++ b/examples/stm32/nucleo-f429zi-freertos/Makefile
@@ -17,6 +17,9 @@ CFLAGS += -IFreeRTOS-Kernel/portable/GCC/ARM_CM4F -Wno-conversion
 SOURCES += mongoose.c  net.c packed_fs.c
 CFLAGS += $(CFLAGS_EXTRA)       # Mongoose options are defined in mongoose_custom.h
 
+# Example specific build options. See README.md
+CFLAGS += -DHTTP_URL=\"http://0.0.0.0/\"
+
 ifeq ($(OS),Windows_NT)
   RM = cmd /C del /Q /F /S
 else
diff --git a/examples/stm32/nucleo-f746zg-baremetal/Makefile b/examples/stm32/nucleo-f746zg-baremetal/Makefile
index 564292bd..e483a850 100644
--- a/examples/stm32/nucleo-f746zg-baremetal/Makefile
+++ b/examples/stm32/nucleo-f746zg-baremetal/Makefile
@@ -13,6 +13,9 @@ SOURCES += mongoose.c net.c packed_fs.c
 CFLAGS += -DMG_ENABLE_TCPIP=1 -DMG_ARCH=MG_ARCH_NEWLIB -DMG_ENABLE_CUSTOM_MILLIS=1
 CFLAGS += -DMG_ENABLE_CUSTOM_RANDOM=1 -DMG_ENABLE_PACKED_FS=1 $(CFLAGS_EXTRA)
 
+# Example specific build options. See README.md
+CFLAGS += -DHTTP_URL=\"http://0.0.0.0/\"
+
 ifeq ($(OS),Windows_NT)
   RM = cmd /C del /Q /F /S
 else
diff --git a/examples/stm32/nucleo-f746zg-cube-baremetal/.cproject b/examples/stm32/nucleo-f746zg-cube-baremetal/.cproject
index 6d073ca2..ab4a166d 100644
--- a/examples/stm32/nucleo-f746zg-cube-baremetal/.cproject
+++ b/examples/stm32/nucleo-f746zg-cube-baremetal/.cproject
@@ -39,6 +39,7 @@
 								<option id="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.c.compiler.option.optimization.level.656778761" name="Optimization level" superClass="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.c.compiler.option.optimization.level" useByScannerDiscovery="false"/>
 								<option IS_BUILTIN_EMPTY="false" IS_VALUE_EMPTY="false" id="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.c.compiler.option.definedsymbols.1784614787" name="Define symbols (-D)" superClass="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.c.compiler.option.definedsymbols" useByScannerDiscovery="false" valueType="definedSymbols">
 									<listOptionValue builtIn="false" value="DEBUG"/>
+									<listOptionValue builtIn="false" value="HTTP_URL=&quot;http://0.0.0.0/&quot;"/>
 									<listOptionValue builtIn="false" value="USE_HAL_DRIVER"/>
 									<listOptionValue builtIn="false" value="STM32F746xx"/>
 								</option>
diff --git a/examples/stm32/nucleo-f746zg-cube-baremetal/.settings/language.settings.xml b/examples/stm32/nucleo-f746zg-cube-baremetal/.settings/language.settings.xml
index 63940852..6270f1c1 100644
--- a/examples/stm32/nucleo-f746zg-cube-baremetal/.settings/language.settings.xml
+++ b/examples/stm32/nucleo-f746zg-cube-baremetal/.settings/language.settings.xml
@@ -5,7 +5,7 @@
 			<provider copy-of="extension" id="org.eclipse.cdt.ui.UserLanguageSettingsProvider"/>
 			<provider-reference id="org.eclipse.cdt.core.ReferencedProjectsLanguageSettingsProvider" ref="shared-provider"/>
 			<provider-reference id="org.eclipse.cdt.managedbuilder.core.MBSLanguageSettingsProvider" ref="shared-provider"/>
-			<provider class="com.st.stm32cube.ide.mcu.toolchain.armnone.setup.CrossBuiltinSpecsDetector" console="false" env-hash="1801027775257995732" id="com.st.stm32cube.ide.mcu.toolchain.armnone.setup.CrossBuiltinSpecsDetector" keep-relative-paths="false" name="MCU ARM GCC Built-in Compiler Settings" parameter="${COMMAND} ${FLAGS} -E -P -v -dD &quot;${INPUTS}&quot;" prefer-non-shared="true">
+			<provider class="com.st.stm32cube.ide.mcu.toolchain.armnone.setup.CrossBuiltinSpecsDetector" console="false" env-hash="384443172480664090" id="com.st.stm32cube.ide.mcu.toolchain.armnone.setup.CrossBuiltinSpecsDetector" keep-relative-paths="false" name="MCU ARM GCC Built-in Compiler Settings" parameter="${COMMAND} ${FLAGS} -E -P -v -dD &quot;${INPUTS}&quot;" prefer-non-shared="true">
 				<language-scope id="org.eclipse.cdt.core.gcc"/>
 				<language-scope id="org.eclipse.cdt.core.g++"/>
 			</provider>
@@ -16,7 +16,7 @@
 			<provider copy-of="extension" id="org.eclipse.cdt.ui.UserLanguageSettingsProvider"/>
 			<provider-reference id="org.eclipse.cdt.core.ReferencedProjectsLanguageSettingsProvider" ref="shared-provider"/>
 			<provider-reference id="org.eclipse.cdt.managedbuilder.core.MBSLanguageSettingsProvider" ref="shared-provider"/>
-			<provider class="com.st.stm32cube.ide.mcu.toolchain.armnone.setup.CrossBuiltinSpecsDetector" console="false" env-hash="1801027775257995732" id="com.st.stm32cube.ide.mcu.toolchain.armnone.setup.CrossBuiltinSpecsDetector" keep-relative-paths="false" name="MCU ARM GCC Built-in Compiler Settings" parameter="${COMMAND} ${FLAGS} -E -P -v -dD &quot;${INPUTS}&quot;" prefer-non-shared="true">
+			<provider class="com.st.stm32cube.ide.mcu.toolchain.armnone.setup.CrossBuiltinSpecsDetector" console="false" env-hash="384443172480664090" id="com.st.stm32cube.ide.mcu.toolchain.armnone.setup.CrossBuiltinSpecsDetector" keep-relative-paths="false" name="MCU ARM GCC Built-in Compiler Settings" parameter="${COMMAND} ${FLAGS} -E -P -v -dD &quot;${INPUTS}&quot;" prefer-non-shared="true">
 				<language-scope id="org.eclipse.cdt.core.gcc"/>
 				<language-scope id="org.eclipse.cdt.core.g++"/>
 			</provider>
diff --git a/examples/stm32/nucleo-f746zg-cube-freertos-lwip/.cproject b/examples/stm32/nucleo-f746zg-cube-freertos-lwip/.cproject
index c976a9b3..980ad123 100644
--- a/examples/stm32/nucleo-f746zg-cube-freertos-lwip/.cproject
+++ b/examples/stm32/nucleo-f746zg-cube-freertos-lwip/.cproject
@@ -39,6 +39,7 @@
 								<option id="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.c.compiler.option.optimization.level.656778761" name="Optimization level" superClass="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.c.compiler.option.optimization.level" useByScannerDiscovery="false"/>
 								<option IS_BUILTIN_EMPTY="false" IS_VALUE_EMPTY="false" id="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.c.compiler.option.definedsymbols.1784614787" name="Define symbols (-D)" superClass="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.c.compiler.option.definedsymbols" useByScannerDiscovery="false" valueType="definedSymbols">
 									<listOptionValue builtIn="false" value="DEBUG"/>
+									<listOptionValue builtIn="false" value="HTTP_URL=&quot;http://0.0.0.0/&quot;"/>
 									<listOptionValue builtIn="false" value="MEMP_NUM_NETCONN=10"/>
 									<listOptionValue builtIn="false" value="USE_HAL_DRIVER"/>
 									<listOptionValue builtIn="false" value="STM32F746xx"/>
diff --git a/examples/stm32/nucleo-f746zg-cube-freertos-lwip/.settings/language.settings.xml b/examples/stm32/nucleo-f746zg-cube-freertos-lwip/.settings/language.settings.xml
index 63940852..6270f1c1 100644
--- a/examples/stm32/nucleo-f746zg-cube-freertos-lwip/.settings/language.settings.xml
+++ b/examples/stm32/nucleo-f746zg-cube-freertos-lwip/.settings/language.settings.xml
@@ -5,7 +5,7 @@
 			<provider copy-of="extension" id="org.eclipse.cdt.ui.UserLanguageSettingsProvider"/>
 			<provider-reference id="org.eclipse.cdt.core.ReferencedProjectsLanguageSettingsProvider" ref="shared-provider"/>
 			<provider-reference id="org.eclipse.cdt.managedbuilder.core.MBSLanguageSettingsProvider" ref="shared-provider"/>
-			<provider class="com.st.stm32cube.ide.mcu.toolchain.armnone.setup.CrossBuiltinSpecsDetector" console="false" env-hash="1801027775257995732" id="com.st.stm32cube.ide.mcu.toolchain.armnone.setup.CrossBuiltinSpecsDetector" keep-relative-paths="false" name="MCU ARM GCC Built-in Compiler Settings" parameter="${COMMAND} ${FLAGS} -E -P -v -dD &quot;${INPUTS}&quot;" prefer-non-shared="true">
+			<provider class="com.st.stm32cube.ide.mcu.toolchain.armnone.setup.CrossBuiltinSpecsDetector" console="false" env-hash="384443172480664090" id="com.st.stm32cube.ide.mcu.toolchain.armnone.setup.CrossBuiltinSpecsDetector" keep-relative-paths="false" name="MCU ARM GCC Built-in Compiler Settings" parameter="${COMMAND} ${FLAGS} -E -P -v -dD &quot;${INPUTS}&quot;" prefer-non-shared="true">
 				<language-scope id="org.eclipse.cdt.core.gcc"/>
 				<language-scope id="org.eclipse.cdt.core.g++"/>
 			</provider>
@@ -16,7 +16,7 @@
 			<provider copy-of="extension" id="org.eclipse.cdt.ui.UserLanguageSettingsProvider"/>
 			<provider-reference id="org.eclipse.cdt.core.ReferencedProjectsLanguageSettingsProvider" ref="shared-provider"/>
 			<provider-reference id="org.eclipse.cdt.managedbuilder.core.MBSLanguageSettingsProvider" ref="shared-provider"/>
-			<provider class="com.st.stm32cube.ide.mcu.toolchain.armnone.setup.CrossBuiltinSpecsDetector" console="false" env-hash="1801027775257995732" id="com.st.stm32cube.ide.mcu.toolchain.armnone.setup.CrossBuiltinSpecsDetector" keep-relative-paths="false" name="MCU ARM GCC Built-in Compiler Settings" parameter="${COMMAND} ${FLAGS} -E -P -v -dD &quot;${INPUTS}&quot;" prefer-non-shared="true">
+			<provider class="com.st.stm32cube.ide.mcu.toolchain.armnone.setup.CrossBuiltinSpecsDetector" console="false" env-hash="384443172480664090" id="com.st.stm32cube.ide.mcu.toolchain.armnone.setup.CrossBuiltinSpecsDetector" keep-relative-paths="false" name="MCU ARM GCC Built-in Compiler Settings" parameter="${COMMAND} ${FLAGS} -E -P -v -dD &quot;${INPUTS}&quot;" prefer-non-shared="true">
 				<language-scope id="org.eclipse.cdt.core.gcc"/>
 				<language-scope id="org.eclipse.cdt.core.g++"/>
 			</provider>
diff --git a/examples/stm32/nucleo-f746zg-cube-freertos/.cproject b/examples/stm32/nucleo-f746zg-cube-freertos/.cproject
index 0dfe2c17..aaef7418 100644
--- a/examples/stm32/nucleo-f746zg-cube-freertos/.cproject
+++ b/examples/stm32/nucleo-f746zg-cube-freertos/.cproject
@@ -39,6 +39,7 @@
 								<option id="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.c.compiler.option.optimization.level.656778761" name="Optimization level" superClass="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.c.compiler.option.optimization.level" useByScannerDiscovery="false"/>
 								<option IS_BUILTIN_EMPTY="false" IS_VALUE_EMPTY="false" id="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.c.compiler.option.definedsymbols.1784614787" name="Define symbols (-D)" superClass="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.c.compiler.option.definedsymbols" useByScannerDiscovery="false" valueType="definedSymbols">
 									<listOptionValue builtIn="false" value="DEBUG"/>
+									<listOptionValue builtIn="false" value="HTTP_URL=&quot;http://0.0.0.0/&quot;"/>
 									<listOptionValue builtIn="false" value="USE_HAL_DRIVER"/>
 									<listOptionValue builtIn="false" value="STM32F746xx"/>
 								</option>
diff --git a/examples/stm32/nucleo-f746zg-cube-freertos/.settings/language.settings.xml b/examples/stm32/nucleo-f746zg-cube-freertos/.settings/language.settings.xml
index 63940852..6270f1c1 100644
--- a/examples/stm32/nucleo-f746zg-cube-freertos/.settings/language.settings.xml
+++ b/examples/stm32/nucleo-f746zg-cube-freertos/.settings/language.settings.xml
@@ -5,7 +5,7 @@
 			<provider copy-of="extension" id="org.eclipse.cdt.ui.UserLanguageSettingsProvider"/>
 			<provider-reference id="org.eclipse.cdt.core.ReferencedProjectsLanguageSettingsProvider" ref="shared-provider"/>
 			<provider-reference id="org.eclipse.cdt.managedbuilder.core.MBSLanguageSettingsProvider" ref="shared-provider"/>
-			<provider class="com.st.stm32cube.ide.mcu.toolchain.armnone.setup.CrossBuiltinSpecsDetector" console="false" env-hash="1801027775257995732" id="com.st.stm32cube.ide.mcu.toolchain.armnone.setup.CrossBuiltinSpecsDetector" keep-relative-paths="false" name="MCU ARM GCC Built-in Compiler Settings" parameter="${COMMAND} ${FLAGS} -E -P -v -dD &quot;${INPUTS}&quot;" prefer-non-shared="true">
+			<provider class="com.st.stm32cube.ide.mcu.toolchain.armnone.setup.CrossBuiltinSpecsDetector" console="false" env-hash="384443172480664090" id="com.st.stm32cube.ide.mcu.toolchain.armnone.setup.CrossBuiltinSpecsDetector" keep-relative-paths="false" name="MCU ARM GCC Built-in Compiler Settings" parameter="${COMMAND} ${FLAGS} -E -P -v -dD &quot;${INPUTS}&quot;" prefer-non-shared="true">
 				<language-scope id="org.eclipse.cdt.core.gcc"/>
 				<language-scope id="org.eclipse.cdt.core.g++"/>
 			</provider>
@@ -16,7 +16,7 @@
 			<provider copy-of="extension" id="org.eclipse.cdt.ui.UserLanguageSettingsProvider"/>
 			<provider-reference id="org.eclipse.cdt.core.ReferencedProjectsLanguageSettingsProvider" ref="shared-provider"/>
 			<provider-reference id="org.eclipse.cdt.managedbuilder.core.MBSLanguageSettingsProvider" ref="shared-provider"/>
-			<provider class="com.st.stm32cube.ide.mcu.toolchain.armnone.setup.CrossBuiltinSpecsDetector" console="false" env-hash="1801027775257995732" id="com.st.stm32cube.ide.mcu.toolchain.armnone.setup.CrossBuiltinSpecsDetector" keep-relative-paths="false" name="MCU ARM GCC Built-in Compiler Settings" parameter="${COMMAND} ${FLAGS} -E -P -v -dD &quot;${INPUTS}&quot;" prefer-non-shared="true">
+			<provider class="com.st.stm32cube.ide.mcu.toolchain.armnone.setup.CrossBuiltinSpecsDetector" console="false" env-hash="384443172480664090" id="com.st.stm32cube.ide.mcu.toolchain.armnone.setup.CrossBuiltinSpecsDetector" keep-relative-paths="false" name="MCU ARM GCC Built-in Compiler Settings" parameter="${COMMAND} ${FLAGS} -E -P -v -dD &quot;${INPUTS}&quot;" prefer-non-shared="true">
 				<language-scope id="org.eclipse.cdt.core.gcc"/>
 				<language-scope id="org.eclipse.cdt.core.g++"/>
 			</provider>
diff --git a/examples/stm32/nucleo-f746zg-freertos-tcp/Makefile b/examples/stm32/nucleo-f746zg-freertos-tcp/Makefile
index 54bfe9df..98f49536 100644
--- a/examples/stm32/nucleo-f746zg-freertos-tcp/Makefile
+++ b/examples/stm32/nucleo-f746zg-freertos-tcp/Makefile
@@ -31,6 +31,9 @@ CFLAGS += -DSTM32F746xx -Wno-sign-compare -Wno-undef -Wno-shadow -Wno-array-boun
 SOURCES += mongoose.c  net.c packed_fs.c
 CFLAGS += $(CFLAGS_EXTRA)  # Mongoose options are defined in mongoose_custom.h
 
+# Example specific build options. See README.md
+CFLAGS += -DHTTP_URL=\"http://0.0.0.0/\"
+
 ifeq ($(OS),Windows_NT)
   RM = cmd /C del /Q /F /S
 else
diff --git a/examples/stm32/nucleo-f746zg-freertos/Makefile b/examples/stm32/nucleo-f746zg-freertos/Makefile
index eab5c20b..cb817dab 100644
--- a/examples/stm32/nucleo-f746zg-freertos/Makefile
+++ b/examples/stm32/nucleo-f746zg-freertos/Makefile
@@ -17,6 +17,9 @@ CFLAGS += -IFreeRTOS-Kernel/portable/GCC/ARM_CM7/r0p1 -Wno-conversion
 SOURCES += mongoose.c  net.c packed_fs.c
 CFLAGS += $(CFLAGS_EXTRA)  # Mongoose options are defined in mongoose_custom.h
 
+# Example specific build options. See README.md
+CFLAGS += -DHTTP_URL=\"http://0.0.0.0/\"
+
 ifeq ($(OS),Windows_NT)
   RM = cmd /C del /Q /F /S
 else
diff --git a/examples/stm32/nucleo-h743zi-baremetal/Makefile b/examples/stm32/nucleo-h743zi-baremetal/Makefile
index a6789d29..25f6d308 100644
--- a/examples/stm32/nucleo-h743zi-baremetal/Makefile
+++ b/examples/stm32/nucleo-h743zi-baremetal/Makefile
@@ -14,6 +14,9 @@ CFLAGS += -DMG_ENABLE_TCPIP=1 -DMG_ARCH=MG_ARCH_NEWLIB -DMG_ENABLE_PACKED_FS=1
 CFLAGS += -DMG_ENABLE_CUSTOM_RANDOM=1 -DMG_ENABLE_CUSTOM_MILLIS=1
 CFLAGS += -DMG_ENABLE_DRIVER_STM32H=1 $(CFLAGS_EXTRA)
 
+# Example specific build options. See README.md
+CFLAGS += -DHTTP_URL=\"http://0.0.0.0/\"
+
 ifeq ($(OS),Windows_NT)
   RM = cmd /C del /Q /F /S
 else
diff --git a/examples/ti/ek-tm4c1294xl-baremetal/Makefile b/examples/ti/ek-tm4c1294xl-baremetal/Makefile
index 4d3ca4f8..010ce199 100644
--- a/examples/ti/ek-tm4c1294xl-baremetal/Makefile
+++ b/examples/ti/ek-tm4c1294xl-baremetal/Makefile
@@ -13,6 +13,9 @@ SOURCES += mongoose.c net.c packed_fs.c
 CFLAGS += -DMG_ENABLE_TCPIP=1 -DMG_ARCH=MG_ARCH_NEWLIB -DMG_ENABLE_CUSTOM_MILLIS=1
 CFLAGS += -DMG_ENABLE_DRIVER_TM4C=1 -DMG_ENABLE_PACKED_FS=1 $(CFLAGS_EXTRA)
 
+# Example specific build options. See README.md
+CFLAGS += -DHTTP_URL=\"http://0.0.0.0/\"
+
 ifeq ($(OS),Windows_NT)
   RM = cmd /C del /Q /F /S
 else
diff --git a/examples/ti/ek-tm4c1294xl-freertos/Makefile b/examples/ti/ek-tm4c1294xl-freertos/Makefile
index 5470429f..c354641b 100644
--- a/examples/ti/ek-tm4c1294xl-freertos/Makefile
+++ b/examples/ti/ek-tm4c1294xl-freertos/Makefile
@@ -17,6 +17,9 @@ CFLAGS += -IFreeRTOS-Kernel/portable/GCC/ARM_CM4F -Wno-conversion
 SOURCES += mongoose.c  net.c packed_fs.c
 CFLAGS += $(CFLAGS_EXTRA)       # Mongoose options are defined in mongoose_custom.h
 
+# Example specific build options. See README.md
+CFLAGS += -DHTTP_URL=\"http://0.0.0.0/\"
+
 ifeq ($(OS),Windows_NT)
   RM = cmd /C del /Q /F /S
 else