diff --git a/configure b/configure
index 398f4c0651..218e51301a 100755
--- a/configure
+++ b/configure
@@ -2095,7 +2095,7 @@ msvc_flags(){
             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
-                                       -wd4996 ;;
+                                       -wd4996 -wd4273 ;;
             -std=c99)             ;;
             -fno-math-errno)      ;;
             -fno-common)          ;;
@@ -2761,6 +2761,25 @@ case $target_os in
         add_cppflags -U__STRICT_ANSI__
         ;;
     win32|win64)
+        if enabled shared; then
+            # Link to the import library instead of the normal static library
+            # for shared libs.
+            LD_LIB='%.lib'
+            # Cannot build shared and static libraries at the same time with
+            # MSVC.
+            disable static
+        fi
+        shlibdir_default="$bindir_default"
+        SLIBPREF=""
+        SLIBSUF=".dll"
+        SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
+        SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
+        SLIB_CREATE_DEF_CMD='makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
+        SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
+        SLIB_INSTALL_LINKS=
+        SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
+        SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
+        SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
         objformat="win32"
         ranlib=:
         enable dos_paths
diff --git a/libavcodec/ac3tab.h b/libavcodec/ac3tab.h
index 8ed50520e6..c2b3febcb7 100644
--- a/libavcodec/ac3tab.h
+++ b/libavcodec/ac3tab.h
@@ -33,7 +33,7 @@
 
 extern const uint16_t ff_ac3_frame_size_tab[38][3];
 extern const uint8_t  ff_ac3_channels_tab[8];
-extern const uint16_t avpriv_ac3_channel_layout_tab[8];
+extern av_export const uint16_t avpriv_ac3_channel_layout_tab[8];
 extern const uint8_t  ff_ac3_enc_channel_map[8][2][6];
 extern const uint8_t  ff_ac3_dec_channel_map[8][2][6];
 extern const uint16_t ff_ac3_sample_rate_tab[3];
diff --git a/libavcodec/dca.h b/libavcodec/dca.h
index 1515270471..76342f0ab9 100644
--- a/libavcodec/dca.h
+++ b/libavcodec/dca.h
@@ -26,6 +26,7 @@
 #define AVCODEC_DCA_H
 
 #include <stdint.h>
+#include "libavutil/internal.h"
 
 /** DCA syncwords, also used for bitstream type detection */
 #define DCA_MARKER_RAW_BE 0x7FFE8001
@@ -36,6 +37,6 @@
 /** DCA-HD specific block starts with this marker. */
 #define DCA_HD_MARKER     0x64582025
 
-extern const uint32_t avpriv_dca_sample_rates[16];
+extern av_export const uint32_t avpriv_dca_sample_rates[16];
 
 #endif /* AVCODEC_DCA_H */
diff --git a/libavcodec/mjpeg.h b/libavcodec/mjpeg.h
index 1374ab319f..a69b519184 100644
--- a/libavcodec/mjpeg.h
+++ b/libavcodec/mjpeg.h
@@ -137,16 +137,16 @@ static inline void put_marker(PutBitContext *p, int code)
         case 7: ret= (left + top)>>1; break;\
     }
 
-extern const uint8_t avpriv_mjpeg_bits_dc_luminance[];
-extern const uint8_t avpriv_mjpeg_val_dc[];
+extern av_export const uint8_t avpriv_mjpeg_bits_dc_luminance[];
+extern av_export const uint8_t avpriv_mjpeg_val_dc[];
 
-extern const uint8_t avpriv_mjpeg_bits_dc_chrominance[];
+extern av_export const uint8_t avpriv_mjpeg_bits_dc_chrominance[];
 
-extern const uint8_t avpriv_mjpeg_bits_ac_luminance[];
-extern const uint8_t avpriv_mjpeg_val_ac_luminance[];
+extern av_export const uint8_t avpriv_mjpeg_bits_ac_luminance[];
+extern av_export const uint8_t avpriv_mjpeg_val_ac_luminance[];
 
-extern const uint8_t avpriv_mjpeg_bits_ac_chrominance[];
-extern const uint8_t avpriv_mjpeg_val_ac_chrominance[];
+extern av_export const uint8_t avpriv_mjpeg_bits_ac_chrominance[];
+extern av_export const uint8_t avpriv_mjpeg_val_ac_chrominance[];
 
 void ff_mjpeg_build_huffman_codes(uint8_t *huff_size, uint16_t *huff_code,
                                   const uint8_t *bits_table,
diff --git a/libavcodec/mpeg4audio.h b/libavcodec/mpeg4audio.h
index 1ee2d7e2c7..e71122d0d3 100644
--- a/libavcodec/mpeg4audio.h
+++ b/libavcodec/mpeg4audio.h
@@ -40,7 +40,7 @@ typedef struct MPEG4AudioConfig {
     int ps;  ///< -1 implicit, 1 presence
 } MPEG4AudioConfig;
 
-extern const int avpriv_mpeg4audio_sample_rates[16];
+extern av_export const int avpriv_mpeg4audio_sample_rates[16];
 extern const uint8_t ff_mpeg4audio_channels[8];
 
 /**
diff --git a/libavcodec/mpegaudiodata.h b/libavcodec/mpegaudiodata.h
index d1a8841f98..2b8ff6587f 100644
--- a/libavcodec/mpegaudiodata.h
+++ b/libavcodec/mpegaudiodata.h
@@ -29,11 +29,13 @@
 
 #include <stdint.h>
 
+#include "libavutil/internal.h"
+
 #define MODE_EXT_MS_STEREO 2
 #define MODE_EXT_I_STEREO  1
 
-extern const uint16_t avpriv_mpa_bitrate_tab[2][3][15];
-extern const uint16_t avpriv_mpa_freq_tab[3];
+extern av_export const uint16_t avpriv_mpa_bitrate_tab[2][3][15];
+extern av_export const uint16_t avpriv_mpa_freq_tab[3];
 extern const int ff_mpa_sblimit_table[5];
 extern const int ff_mpa_quant_steps[17];
 extern const int ff_mpa_quant_bits[17];
diff --git a/libavutil/internal.h b/libavutil/internal.h
index e61a629f05..9fd105145c 100644
--- a/libavutil/internal.h
+++ b/libavutil/internal.h
@@ -47,6 +47,12 @@
 #endif
 #endif
 
+#if defined(_MSC_VER) && CONFIG_SHARED
+#    define av_export __declspec(dllimport)
+#else
+#    define av_export
+#endif
+
 #ifndef INT_BIT
 #    define INT_BIT (CHAR_BIT * sizeof(int))
 #endif