From 26ffc1863483d3cb4c24e2e7638a301324693c49 Mon Sep 17 00:00:00 2001
From: 0x123456789A <57141050+0x123456789A@users.noreply.github.com>
Date: Tue, 29 Oct 2019 14:31:02 +0100
Subject: [PATCH 1/3] Introduce ZSTD_PROGRAMS_LINK_SHARED

The CMake variable ZSTD_PROGRAMS_LINK_SHARED indicactes wether or not to link the zstd programs dynamically or statically.
---
 build/cmake/CMakeLists.txt | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/build/cmake/CMakeLists.txt b/build/cmake/CMakeLists.txt
index 33c05aee8..41fdf787f 100644
--- a/build/cmake/CMakeLists.txt
+++ b/build/cmake/CMakeLists.txt
@@ -124,9 +124,13 @@ endif ()
 #-----------------------------------------------------------------------------
 add_subdirectory(lib)
 
+option(ZSTD_PROGRAMS_LINK_SHARED "PROGRAMS LINK SHARED" OFF)
+
 if (ZSTD_BUILD_PROGRAMS)
-    if (NOT ZSTD_BUILD_STATIC)
+    if (NOT ZSTD_BUILD_STATIC AND NOT ZSTD_PROGRAMS_LINK_SHARED)
         message(SEND_ERROR "You need to build static library to build zstd CLI")
+    elseif(ZSTD_BUILD_STATIC AND ZSTD_PROGRAMS_LINK_SHARED)
+        message(SEND_ERROR "You need to build shared library to build zstd CLI")
     endif ()
 
     add_subdirectory(programs)

From 57a311d3b7dac3728a366ef9892f9d0ed48816a8 Mon Sep 17 00:00:00 2001
From: 0x123456789A <57141050+0x123456789A@users.noreply.github.com>
Date: Tue, 29 Oct 2019 14:33:50 +0100
Subject: [PATCH 2/3] Consider ZSTD_PROGRAMS_LINK_SHARED

Actually consider ZSTD_PROGRAMS_LINK_SHARED in programs CMakeLists
---
 build/cmake/programs/CMakeLists.txt | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/build/cmake/programs/CMakeLists.txt b/build/cmake/programs/CMakeLists.txt
index 8afd83503..b26e97d0d 100644
--- a/build/cmake/programs/CMakeLists.txt
+++ b/build/cmake/programs/CMakeLists.txt
@@ -21,13 +21,19 @@ if (ZSTD_LEGACY_SUPPORT)
     include_directories(${PROGRAMS_LEGACY_DIR} ${LIBRARY_DIR}/legacy)
 endif ()
 
+if (ZSTD_PROGRAMS_LINK_SHARED)
+    set(PROGRAMS_ZSTD_LINK_TARGET libzstd_shared)
+else ()
+    set(PROGRAMS_ZSTD_LINK_TARGET libzstd_static)
+endif ()
+
 if (MSVC)
     set(MSVC_RESOURCE_DIR ${ZSTD_SOURCE_DIR}/build/VS2010/zstd)
     set(PlatformDependResources ${MSVC_RESOURCE_DIR}/zstd.rc)
 endif ()
 
 add_executable(zstd ${PROGRAMS_DIR}/zstdcli.c ${PROGRAMS_DIR}/util.c ${PROGRAMS_DIR}/timefn.c ${PROGRAMS_DIR}/fileio.c ${PROGRAMS_DIR}/benchfn.c ${PROGRAMS_DIR}/benchzstd.c ${PROGRAMS_DIR}/datagen.c ${PROGRAMS_DIR}/dibio.c ${PlatformDependResources})
-target_link_libraries(zstd libzstd_static)
+target_link_libraries(zstd ${PROGRAMS_ZSTD_LINK_TARGET})
 if (CMAKE_SYSTEM_NAME MATCHES "(Solaris|SunOS)")
     target_link_libraries(zstd rt)
 endif ()
@@ -68,7 +74,7 @@ if (UNIX)
         DESTINATION "${MAN_INSTALL_DIR}")
 
     add_executable(zstd-frugal ${PROGRAMS_DIR}/zstdcli.c ${PROGRAMS_DIR}/util.c ${PROGRAMS_DIR}/timefn.c ${PROGRAMS_DIR}/fileio.c)
-    target_link_libraries(zstd-frugal libzstd_static)
+    target_link_libraries(zstd-frugal ${PROGRAMS_ZSTD_LINK_TARGET})
     set_property(TARGET zstd-frugal APPEND PROPERTY COMPILE_DEFINITIONS "ZSTD_NOBENCH;ZSTD_NODICT")
 endif ()
 

From 9db11e3e42d9cde6bfd88e0c52df369aefe55d5a Mon Sep 17 00:00:00 2001
From: 0x123456789A <57141050+0x123456789A@users.noreply.github.com>
Date: Tue, 29 Oct 2019 14:41:32 +0100
Subject: [PATCH 3/3] Fixed check for building programs statically

---
 build/cmake/CMakeLists.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/build/cmake/CMakeLists.txt b/build/cmake/CMakeLists.txt
index 41fdf787f..9d0e7fb0b 100644
--- a/build/cmake/CMakeLists.txt
+++ b/build/cmake/CMakeLists.txt
@@ -129,7 +129,7 @@ option(ZSTD_PROGRAMS_LINK_SHARED "PROGRAMS LINK SHARED" OFF)
 if (ZSTD_BUILD_PROGRAMS)
     if (NOT ZSTD_BUILD_STATIC AND NOT ZSTD_PROGRAMS_LINK_SHARED)
         message(SEND_ERROR "You need to build static library to build zstd CLI")
-    elseif(ZSTD_BUILD_STATIC AND ZSTD_PROGRAMS_LINK_SHARED)
+    elseif(NOT ZSTD_BUILD_SHARED AND ZSTD_PROGRAMS_LINK_SHARED)
         message(SEND_ERROR "You need to build shared library to build zstd CLI")
     endif ()